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PHP is a server-side scripting language commonly used for web development. It allows developers to add dynamic content to websites. PHP scripts can output HTML, manipulate files, connect to databases, and more. The language contains many built-in functions for working with strings, arrays, files, and other common tasks. PHP code is embedded within HTML and executed by the web server before the page is sent to the browser. This allows dynamic content and functionality to be added to websites through PHP.
This document provides an introduction to PHP, covering its history, syntax, variables, arrays, operators, control structures, and using external data files. PHP is an open-source scripting language mainly used for web development. It allows embedding code into HTML pages. The document outlines PHP's origins and evolution, how it is parsed by servers, and its basic syntax and programming constructs like if/else statements, loops, and functions. It also discusses working with variables, arrays, and reading/writing external files for dynamic web content.
This document provides an introduction to PHP, covering its history, parsing, variables, arrays, operators, functions, control structures, and use of external data files. PHP is an open-source server-side scripting language that was originally created in 1994 and is widely used for web development. It allows developers to embed code into HTML pages that is executed on the server to dynamically generate content.
PHP is a server-side scripting language commonly used for web development. It was created in 1994 and has evolved significantly over time. PHP scripts can output HTML content as well as dynamically generate pages based on external data sources. PHP supports variables, arrays, operators, flow control structures, and functions to build robust web applications. It allows embedding code snippets directly into HTML files or calling HTML from PHP scripts.
PHP is a server-side scripting language commonly used for web development. It allows developers to add dynamic content to websites. PHP code is embedded within HTML and executed on the server before the page is sent to the browser. The document provides an introduction and overview of PHP, covering its history, syntax based on Perl and C, how PHP scripts are parsed and executed, variables, arrays, operators, control structures like if/else and loops, functions to include external files, and how PHP can be used to retrieve and display external data.
The document discusses several topics related to using Perl for bioinformatics lessons including:
- Providing lesson materials and additional educational resources online
- Benefits of using web technology like having questions answered online and avoiding repetitive questions
- Practicum details like introductions, assignments, and locations
- An introduction to the Perl programming language including its history, uses, and advantages for bioinformatics tasks
- Examples of bioinformatics problems that can be solved using Perl like sequence analysis, parsing results, and database queries
PHP is a server-side scripting language that can be embedded into HTML. It is used to dynamically generate client-side code sent as the HTTP response. PHP code is executed on the web server and allows variables, conditional statements, loops, functions, and arrays to dynamically output content. Key features include PHP tags <?php ?> to delimit PHP code, the echo command to output to the client, and variables that can store different data types and change types throughout a program.
PHP is a server-side scripting language commonly used for web development. It allows developers to add dynamic content to websites. PHP scripts can output HTML, manipulate files, connect to databases, and more. The language contains many built-in functions for working with strings, arrays, files, and other common tasks. PHP code is embedded within HTML and executed by the web server before the page is sent to the browser. This allows dynamic content and functionality to be added to websites through PHP.
This document provides an introduction to PHP, covering its history, syntax, variables, arrays, operators, control structures, and using external data files. PHP is an open-source scripting language mainly used for web development. It allows embedding code into HTML pages. The document outlines PHP's origins and evolution, how it is parsed by servers, and its basic syntax and programming constructs like if/else statements, loops, and functions. It also discusses working with variables, arrays, and reading/writing external files for dynamic web content.
This document provides an introduction to PHP, covering its history, parsing, variables, arrays, operators, functions, control structures, and use of external data files. PHP is an open-source server-side scripting language that was originally created in 1994 and is widely used for web development. It allows developers to embed code into HTML pages that is executed on the server to dynamically generate content.
PHP is a server-side scripting language commonly used for web development. It was created in 1994 and has evolved significantly over time. PHP scripts can output HTML content as well as dynamically generate pages based on external data sources. PHP supports variables, arrays, operators, flow control structures, and functions to build robust web applications. It allows embedding code snippets directly into HTML files or calling HTML from PHP scripts.
PHP is a server-side scripting language commonly used for web development. It allows developers to add dynamic content to websites. PHP code is embedded within HTML and executed on the server before the page is sent to the browser. The document provides an introduction and overview of PHP, covering its history, syntax based on Perl and C, how PHP scripts are parsed and executed, variables, arrays, operators, control structures like if/else and loops, functions to include external files, and how PHP can be used to retrieve and display external data.
The document discusses several topics related to using Perl for bioinformatics lessons including:
- Providing lesson materials and additional educational resources online
- Benefits of using web technology like having questions answered online and avoiding repetitive questions
- Practicum details like introductions, assignments, and locations
- An introduction to the Perl programming language including its history, uses, and advantages for bioinformatics tasks
- Examples of bioinformatics problems that can be solved using Perl like sequence analysis, parsing results, and database queries
PHP is a server-side scripting language that can be embedded into HTML. It is used to dynamically generate client-side code sent as the HTTP response. PHP code is executed on the web server and allows variables, conditional statements, loops, functions, and arrays to dynamically output content. Key features include PHP tags <?php ?> to delimit PHP code, the echo command to output to the client, and variables that can store different data types and change types throughout a program.
Introduction to PHP: Declaring variables, data types, arrays, strings, operators, expressions, control structures, functions, Handling sessions and cookies
File Handling in PHP: File operations like opening, closing, reading, writing appending, deleting etc.
This document provides an introduction to Perl and BioPerl for bioinformatics. It discusses Jennifer Dommer and Vivek Gopalan from the National Institute of Allergy and Infectious Diseases presenting on Perl programming principles including variables, flow control, loops, file manipulation and regular expressions. It then provides an overview of BioPerl and how it can be used for tasks like working with sequence data. Examples are given throughout to demonstrate various Perl coding concepts.
This document provides an overview of using the Perl programming language for bioinformatics applications. It introduces Perl variables like scalars, arrays, and hashes. It also covers flow control and loops. The document demonstrates how to open and read/write files in Perl. It provides examples of commonly used bioinformatics tools that incorporate Perl components and recommends resources for learning more about Perl and BioPerl.
This is the first set of slightly updated slides from a Perl programming course that I held some years ago for the QA team of a big international company.
I want to share it with everyone looking for intransitive Perl-knowledge.
The updates after 1st of June 2014 are made with the kind support of Chain Solutions (http://chainsolutions.net/)
A table of content for all presentations can be found at i-can.eu.
The source code for the examples and the presentations in ODP format are on https://github.com/kberov/PerlProgrammingCourse
The document outlines an agenda for a PHP crash course, beginning with an introduction to the speaker's background and qualifications. It then covers the basics of PHP including its history, why it's popular, how to get started, basic syntax and types, variables, constants, expressions, control structures, functions, classes and objects. The document recommends additional advanced PHP topics and reading materials.
This document provides an introduction to PHP. It covers a brief history of PHP and its syntax which is based on Perl, Java, and C. It also discusses parsing, variables, arrays, operators, control structures, and using external data files. Zend is discussed as the company that provides the Zend engine and other PHP products. Key PHP concepts covered include PHP scripts, including and requiring files, variable variables, and object oriented programming. The document is intended to give an overview of PHP for beginners.
Perl is a general-purpose programming language created by Larry Wall in 1987. It supports both procedural and object-oriented programming. Perl is useful for tasks like web development, system administration, text processing and more due to its powerful built-in support for text processing and large collection of third-party modules. Basic Perl syntax includes variables starting with $, @, and % for scalars, arrays, and hashes respectively. Conditional and looping constructs like if/else, while, and for are also supported.
This document provides an overview of the Perl programming language. It discusses Perl's history and introduction, beginning with Perl scripts, data types like scalars, lists, arrays, and hashes. It also covers Perl operators, conditional statements, regular expressions, subroutines, and file handling. The document is intended as an introduction to Perl and provides examples of basic Perl syntax and functions.
This document discusses new features in PHP 8.1, including enums and fibers. Enums allow for defining enumerated types that can contain members, methods, and backed values. Fibers enable lightweight concurrency in PHP through cooperative multitasking. Example code is provided to demonstrate how enums can be used to represent application states and fiber functions can be suspended and resumed to run code concurrently without blocking. The document also briefly mentions readonly properties as another new feature in PHP 8.1.
The document provides an overview of the Perl programming language. It discusses that Perl stands for Practical Extraction and Reporting Language and is similar to shell script but more powerful and easier. It then covers basic Perl concepts like file extensions, self-executing scripts, advantages over other languages, and using print statements. The document also summarizes storing values using scalar and list variables, control structures, regular expressions, functions, and more advanced Perl topics.
This is the sixth set of slightly updated slides from a Perl programming course that I held some years ago.
I want to share it with everyone looking for intransitive Perl-knowledge.
A table of content for all presentations can be found at i-can.eu.
The source code for the examples and the presentations in ODP format are on https://github.com/kberov/PerlProgrammingCourse
This document provides an overview of PHP basics including:
- What PHP is and how it works as a server-side scripting language
- The basic structure of PHP files and how PHP code is executed
- Common PHP syntax like variables, data types, operators, conditional statements, loops, arrays, and functions
- How to handle forms and user input with the $_GET, $_POST, and $_REQUEST superglobals
- Examples of basic PHP scripts and code snippets
The document is intended as an introduction to PHP for beginners, covering the essential concepts needed to get started with the language.
The document discusses the Standard PHP Library (SPL) which provides common data structures and interfaces in PHP. It describes various iterator interfaces and classes that can be used to iterate over data in a consistent manner. These include interfaces like Iterator and classes like RecursiveIteratorIterator, FilterIterator, ArrayIterator, DirectoryIterator, and SplFileInfo. It also discusses other SPL components like exceptions, autoloading functions, and data structures.
Writing and using php streams and sockets tek11Elizabeth Smith
Streams provide a generic way to access input and output in PHP and were originally introduced in the 1950s as a standard way to handle input/output. PHP implements streams using wrappers that tell streams how to handle specific protocols and encodings, and filters that can transform stream data. Common stream wrappers in PHP include file, http, ftp, and php streams for interacting with system inputs and outputs.
The document discusses various techniques for querying databases and generating reports from the query results using Perl. It provides examples of using DBI and SQL to query databases and format output, techniques for binding variables, preparing queries, and fetching and printing rows. Additional examples show merging and transforming tabular data for different output formats.
1. PHP is a server-side scripting language commonly used for web development. It allows developers to embed PHP code into HTML pages which is then executed by the server to generate dynamic web page content.
2. PHP code is embedded within <?php ?> tags and executed by the web server before the page is sent to the browser. This allows PHP to access databases and generate customized HTML responses.
3. PHP supports common programming constructs like variables, data types, operators, functions, classes and objects. It also provides functions and constructs for working with arrays, files, databases and more. PHP code can easily be added to HTML pages to create dynamic and database-driven web applications.
This chapter discusses working with text and numbers in PHP. It covers defining and manipulating strings, including validating, formatting, and changing case. Functions for selecting, replacing, and exploding parts of strings are described. Working with numbers, math operators, variables, and number formatting functions are also summarized. Key string functions include substr(), str_replace(), printf(), and number functions include rand(), round(), pow(), and abs().
El documento presenta el horario de clases para el segundo semestre del cuarto curso. Las clases teóricas son los lunes de 9 a 15 horas sobre realización de nuevos formatos y redes audiovisuales. Las clases prácticas se dividen en grupos los lunes por la tarde.
El documento presenta el trabajo final de un curso de posgrado sobre el uso de tecnologías de la información y comunicación en la educación. El trabajo propone organizar el servidor escolar mediante carpetas compartidas, asesorar a los docentes sobre el uso de estas herramientas y acompañar a docentes y alumnos en actividades que promuevan el aprendizaje colaborativo y el uso de recursos digitales.
Introduction to PHP: Declaring variables, data types, arrays, strings, operators, expressions, control structures, functions, Handling sessions and cookies
File Handling in PHP: File operations like opening, closing, reading, writing appending, deleting etc.
This document provides an introduction to Perl and BioPerl for bioinformatics. It discusses Jennifer Dommer and Vivek Gopalan from the National Institute of Allergy and Infectious Diseases presenting on Perl programming principles including variables, flow control, loops, file manipulation and regular expressions. It then provides an overview of BioPerl and how it can be used for tasks like working with sequence data. Examples are given throughout to demonstrate various Perl coding concepts.
This document provides an overview of using the Perl programming language for bioinformatics applications. It introduces Perl variables like scalars, arrays, and hashes. It also covers flow control and loops. The document demonstrates how to open and read/write files in Perl. It provides examples of commonly used bioinformatics tools that incorporate Perl components and recommends resources for learning more about Perl and BioPerl.
This is the first set of slightly updated slides from a Perl programming course that I held some years ago for the QA team of a big international company.
I want to share it with everyone looking for intransitive Perl-knowledge.
The updates after 1st of June 2014 are made with the kind support of Chain Solutions (http://chainsolutions.net/)
A table of content for all presentations can be found at i-can.eu.
The source code for the examples and the presentations in ODP format are on https://github.com/kberov/PerlProgrammingCourse
The document outlines an agenda for a PHP crash course, beginning with an introduction to the speaker's background and qualifications. It then covers the basics of PHP including its history, why it's popular, how to get started, basic syntax and types, variables, constants, expressions, control structures, functions, classes and objects. The document recommends additional advanced PHP topics and reading materials.
This document provides an introduction to PHP. It covers a brief history of PHP and its syntax which is based on Perl, Java, and C. It also discusses parsing, variables, arrays, operators, control structures, and using external data files. Zend is discussed as the company that provides the Zend engine and other PHP products. Key PHP concepts covered include PHP scripts, including and requiring files, variable variables, and object oriented programming. The document is intended to give an overview of PHP for beginners.
Perl is a general-purpose programming language created by Larry Wall in 1987. It supports both procedural and object-oriented programming. Perl is useful for tasks like web development, system administration, text processing and more due to its powerful built-in support for text processing and large collection of third-party modules. Basic Perl syntax includes variables starting with $, @, and % for scalars, arrays, and hashes respectively. Conditional and looping constructs like if/else, while, and for are also supported.
This document provides an overview of the Perl programming language. It discusses Perl's history and introduction, beginning with Perl scripts, data types like scalars, lists, arrays, and hashes. It also covers Perl operators, conditional statements, regular expressions, subroutines, and file handling. The document is intended as an introduction to Perl and provides examples of basic Perl syntax and functions.
This document discusses new features in PHP 8.1, including enums and fibers. Enums allow for defining enumerated types that can contain members, methods, and backed values. Fibers enable lightweight concurrency in PHP through cooperative multitasking. Example code is provided to demonstrate how enums can be used to represent application states and fiber functions can be suspended and resumed to run code concurrently without blocking. The document also briefly mentions readonly properties as another new feature in PHP 8.1.
The document provides an overview of the Perl programming language. It discusses that Perl stands for Practical Extraction and Reporting Language and is similar to shell script but more powerful and easier. It then covers basic Perl concepts like file extensions, self-executing scripts, advantages over other languages, and using print statements. The document also summarizes storing values using scalar and list variables, control structures, regular expressions, functions, and more advanced Perl topics.
This is the sixth set of slightly updated slides from a Perl programming course that I held some years ago.
I want to share it with everyone looking for intransitive Perl-knowledge.
A table of content for all presentations can be found at i-can.eu.
The source code for the examples and the presentations in ODP format are on https://github.com/kberov/PerlProgrammingCourse
This document provides an overview of PHP basics including:
- What PHP is and how it works as a server-side scripting language
- The basic structure of PHP files and how PHP code is executed
- Common PHP syntax like variables, data types, operators, conditional statements, loops, arrays, and functions
- How to handle forms and user input with the $_GET, $_POST, and $_REQUEST superglobals
- Examples of basic PHP scripts and code snippets
The document is intended as an introduction to PHP for beginners, covering the essential concepts needed to get started with the language.
The document discusses the Standard PHP Library (SPL) which provides common data structures and interfaces in PHP. It describes various iterator interfaces and classes that can be used to iterate over data in a consistent manner. These include interfaces like Iterator and classes like RecursiveIteratorIterator, FilterIterator, ArrayIterator, DirectoryIterator, and SplFileInfo. It also discusses other SPL components like exceptions, autoloading functions, and data structures.
Writing and using php streams and sockets tek11Elizabeth Smith
Streams provide a generic way to access input and output in PHP and were originally introduced in the 1950s as a standard way to handle input/output. PHP implements streams using wrappers that tell streams how to handle specific protocols and encodings, and filters that can transform stream data. Common stream wrappers in PHP include file, http, ftp, and php streams for interacting with system inputs and outputs.
The document discusses various techniques for querying databases and generating reports from the query results using Perl. It provides examples of using DBI and SQL to query databases and format output, techniques for binding variables, preparing queries, and fetching and printing rows. Additional examples show merging and transforming tabular data for different output formats.
1. PHP is a server-side scripting language commonly used for web development. It allows developers to embed PHP code into HTML pages which is then executed by the server to generate dynamic web page content.
2. PHP code is embedded within <?php ?> tags and executed by the web server before the page is sent to the browser. This allows PHP to access databases and generate customized HTML responses.
3. PHP supports common programming constructs like variables, data types, operators, functions, classes and objects. It also provides functions and constructs for working with arrays, files, databases and more. PHP code can easily be added to HTML pages to create dynamic and database-driven web applications.
This chapter discusses working with text and numbers in PHP. It covers defining and manipulating strings, including validating, formatting, and changing case. Functions for selecting, replacing, and exploding parts of strings are described. Working with numbers, math operators, variables, and number formatting functions are also summarized. Key string functions include substr(), str_replace(), printf(), and number functions include rand(), round(), pow(), and abs().
El documento presenta el horario de clases para el segundo semestre del cuarto curso. Las clases teóricas son los lunes de 9 a 15 horas sobre realización de nuevos formatos y redes audiovisuales. Las clases prácticas se dividen en grupos los lunes por la tarde.
El documento presenta el trabajo final de un curso de posgrado sobre el uso de tecnologías de la información y comunicación en la educación. El trabajo propone organizar el servidor escolar mediante carpetas compartidas, asesorar a los docentes sobre el uso de estas herramientas y acompañar a docentes y alumnos en actividades que promuevan el aprendizaje colaborativo y el uso de recursos digitales.
Este documento presenta el horario de las materias del segundo curso de la carrera de Comunicación Audiovisual para la semana del 23 de mayo de 2014. Se detallan las asignaturas, horas y aulas correspondientes a cada uno de los cuatro cursos de la carrera para los días jueves y viernes de esa semana.
Менеджмент в юридичному бізнесі: лідерство, команда, ефективністьAnnaGolets
Керуючий партнер ЮФ «Гвоздій та Оберкович» Валентин Гвоздій виступив з навчальним модулем у рамках тренінгу для юристів «Leadership in Law», що був організований Київською школою розвитку та комунікацій 01 листопада 2014 року. Метою цієї освітньої програми є розвиток управлінських, особистих та фахових якостей молодих правників. Під час тренінгу Валентин Гвоздій, спираючись на власний досвід, надав поради у галузі загального менеджменту юридичного бізнесу. До уваги аудиторії керуючий партнер представив, зокрема, ефективну систему створення ідеального місця для роботи та розвитку як з точки зору працівників, так і керівника, та підкреслив важливу роль лідера в юридичній фірмі. Також Валентин Гвоздій проаналізував особливості управління на основі інструкцій, цілей та цінностей та надав експертні рекомендації щодо реалізації шляхів до тривалого успіху юридичної фірми.
La configuración de LinkedIn permite a los usuarios personalizar su perfil, privacidad y preferencias de comunicación. Pueden elegir qué información se muestra públicamente en su perfil y quién puede ver determinados detalles como la ubicación, empleador actual y estado laboral. También pueden administrar sus conexiones y notificaciones para controlar su experiencia en LinkedIn.
O documento relata que em setembro de 2011 houve um crescimento de 1,3% na ocupação e na População Economicamente Ativa na Região Metropolitana de Porto Alegre (RMPA). A taxa de desemprego permaneceu estável em 7,7% entre agosto e setembro. Nos últimos 12 meses, a ocupação cresceu 4% com redução de 6,4% no desemprego.
Este documento resume a IX Bienal de Pintura do Eixo Atlântico em 2011-2012, incluindo os prêmios, comissários, patrocinadores e membros do júri. A bienal promove a criatividade de artistas jovens da região transfronteiriça da Galiza e norte de Portugal.
Este documento presenta información biográfica breve sobre varios artistas de reggaetón puertorriqueños como Wisin y Yandel, Daddy Yankee, Arcángel, RKM & Ken-Y y Nigga. Se destaca que Wisin y Yandel son de Cayey, Puerto Rico y son considerados representantes destacados del reggaetón. Daddy Yankee comenzó su carrera musical a los 13 años en Río Piedras con la ayuda de DJ Playero. Arcángel nació en Nueva York de madre dominicana. RKM & Ken-Y son de Gurabo,
Forrester and BESegal on Social Media Metrics That MatterBruce Segal
The document discusses social media analytics and metrics that can be used to measure the effectiveness of social media marketing. It provides a list of metrics that are more useful than typical metrics like follower counts, including: (1) the value of social referrals or recommendations, (2) an influencer score for customers, and (3) differentiating real influencers from self-reported influencers. The document emphasizes that the metrics that matter are those tied to business goals and outcomes.
Conquest Financial is a provider of working capital and merchant services for small and medium-sized businesses. They offer funding through credit card receivable factoring, which provides advances against future credit card sales. They also offer merchant processing services, POS systems, and other business services. Conquest aims to help businesses access the funding they need to grow and succeed with fast approval processes and competitive rates.
PHP is a server-side scripting language commonly used for web development. The document provides an introduction to PHP including a brief history, how PHP scripts are parsed, variables, arrays, operators, control structures, and including external files. It discusses PHP's architecture and how scripts are executed on the server before being sent to the browser.
PHP is a server-side scripting language commonly used for web development. It allows developers to add dynamic content to websites. Key points:
- PHP scripts are executed on the server and output HTML, JavaScript, or other code to browsers.
- PHP supports variables, arrays, functions, classes, and control structures like if/else statements.
- External data like from text files or databases can be easily incorporated into dynamic web pages using PHP.
- PHP files have a .php extension and PHP code is delimited by <?php ?> tags within HTML files or standalone PHP files.
Version 5.0 will include version 2.0 of the Zend Engine
New object model is more powerful and intuitive
Objects will no longer be passed by value; they now will be passed by reference
Increases performance and makes OOP more attractive
- PHP is a server-side scripting language commonly used for web development. It allows developers to add dynamic content to websites.
- The document provides an introduction and overview of key PHP concepts including variables, arrays, operators, control structures, and using external data files.
- It discusses PHP's history and architecture, and how PHP scripts are executed on the server to generate dynamic web pages.
This document provides an overview of server-side scripting using PHP. It includes 15 questions covering PHP topics like variables, data types, arrays, functions, and form handling. The questions are worth a total of 15 marks and include multiple choice, fill in the blank, true/false, and code writing questions. The document then provides details on PHP including an introduction, how it is well-suited for web development, examples of first PHP code, and explanations of variables, data types, arrays, control structures, functions and comments.
This document provides an introduction to PHP, covering its history, core concepts like variables, arrays, operators, control structures, and how to include external files. PHP is a server-side scripting language commonly used for web development. It was created in 1994 and has evolved through several versions. Key points covered include PHP's loose typing, how variables work and are assigned, the various operators available, using arrays to store multiple values, and control structures like if/else statements and loops to control program flow. The document also discusses including other files to reuse code and read external data files.
This document provides an introduction and overview of PHP. It begins with a brief history of PHP, noting it was created in 1994 and is now one of the premier open source projects. It discusses PHP's server-side scripting capabilities and mentions variables, arrays, operators, functions and control structures as topics that will be covered. The document provides background on PHP and how it is well-suited for dynamic web content. It also discusses PHP parsing and architecture.
The document provides an overview and introduction to PHP including:
- PHP is a server-side scripting language used for web development. It was created by Rasmus Lerdorf in 1995.
- It discusses PHP basics like syntax, variables, strings, arrays, functions, and how to interact with forms and retrieve data from web pages.
- It also covers using PHP to communicate with backend databases and services to fetch and parse XML/JSON data.
Php i basic chapter 3 (mardhiah kamaludin's conflicted copy 2013-04-23)Muhamad Al Imran
The document provides an overview of server-side scripting and PHP. It explains that server-side scripts are processed by the web server before the response is sent to the client. It then discusses some key advantages of server-side scripting like dynamic content generation and access to databases. The document also introduces PHP, covering what it is, how it is processed, and what is needed to develop PHP applications. It provides examples of basic PHP syntax like variables, operators, and control structures.
Training on php by cyber security infotech (csi). Cs-infotech is one of the best cyber security and website development company in India. we also provide Network security, software development, Cyber security corporate training and SEO and SMO services.
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Custom, in depth 5 day PHP course I put together in 2014. I'm available to deliver this training in person at your offices - contact me at rich@quicloud.com for rate quotes.
This document provides an introduction and overview of PHP and MySQL. PHP is a programming language used for building dynamic web sites. It allows embedding code within HTML pages to quickly create dynamic content. PHP is processed on the server side to produce HTML results. The document outlines PHP basics like syntax, variables, strings, operators, and conditional statements. It also discusses MySQL, the most popular database used with PHP. The document concludes with exercises for users to practice basic PHP concepts.
This document outlines an agenda for a PHP Intermediate training course. It covers various PHP concepts like arrays, loops, functions, GET and POST variables, and differences between PHP 4 and PHP 5. It includes examples and explanations of PHP array functions like count(), array_slice(), array_reverse() etc. It also discusses for, foreach, while and do-while loop structures. Finally, it lists some exercises for attendees to practice array manipulation, string reversal, finding middle element, duplicates etc. using PHP.
This document provides an introduction to Perl programming by discussing what Perl is used for, why it is useful, and how to get started with the language. It covers installing Perl on Windows and Linux, using variables and data structures like scalars, arrays, hashes, and references. It also demonstrates basic Perl syntax like conditional statements, loops, file I/O, and running commands. The goal is to get readers writing basic Perl code quickly while highlighting some key features of the language.
This document provides an introduction to PHP, including an overview of server-side scripting, the basic PHP syntax, variables, operators, control structures like conditional statements and loops, and how PHP code is processed. It explains what PHP is, how it is widely used for building dynamic websites, and the basic components needed to develop PHP applications including a web server, PHP, and a database.
Php i basic chapter 3 (syahir chaer's conflicted copy 2013-04-22)Muhamad Al Imran
This document provides an introduction to PHP, including an overview of server-side scripting, how PHP code is processed, basic PHP syntax, variables, operators, control structures like conditional statements and loops, and other key PHP concepts. It explains what PHP is, how it is used to create dynamic web content, and some of the basic building blocks needed to get started with PHP programming.
Php i basic chapter 3 (afifah rosli's conflicted copy 2013-04-23)Muhamad Al Imran
This document provides an introduction to PHP, including an overview of server-side scripting, how PHP code is processed, basic PHP syntax, variables, operators, control structures like conditional statements and loops, and other key PHP concepts. It explains what PHP is, how it is used to create dynamic web content, and some of the basic building blocks needed to get started with PHP programming.
Vibrant Technologies is headquarted in Mumbai,India.We are the best Business Analyst training provider in Navi Mumbai who provides Live Projects to students.We provide Corporate Training also.We are Best Business Analyst classes in Mumbai according to our students and corporators
This presentation is about -
History of ITIL,
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Create & Manager Users,
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Php classes in mumbai
1.
2. Introduction to php
By
K1/ 4, Second floor, Sector-15/16 Market,
Vashi, Navi Mumbai
www.vibranttechnologies.co.in
Mob No:
9892900103
9892900173
3. What we'll cover
• A short history of php
• Parsing
• Variables
• Arrays
• Operators
• Functions
• Control Structures
• External Data Files
4. Background
• PHP is server side scripting system
• PHP stands for "PHP: Hypertext Preprocessor"
• Syntax based on Perl, Java, and C
• Very good for creating dynamic content
• Powerful, but somewhat risky!
• If you want to focus on one system for dynamic
content, this is a good one to choose
5. History
• Started as a Perl hack in 1994 by Rasmus Lerdorf
(to handle his resume), developed to PHP/FI 2.0
• By 1997 up to PHP 3.0 with a new parser engine
by Zeev Suraski and Andi Gutmans
• Version 5.2.4 is current version, rewritten by Zend
(www.zend.com) to include a number of features,
such as an object model
• Current is version 5
• php is one of the premier examples of what an
open source project can be
6. About Zend
• A Commercial Enterprise
• Zend provides Zend engine for PHP for free
• They provide other products and services for a fee
• Server side caching and other optimizations
• Encoding in Zend's intermediate format to protect
source code
• IDE-a developer's package with tools to make life
easier
• Support and training services
• Zend's web site is a great resource
7. PHP 5 Architecture
• Zend engine as parser (Andi Gutmans and Zeev Suraski)
• SAPI is a web server abstraction layer
• PHP components now self contained (ODBC, Java,
LDAP, etc.)
• This structure is a good general design for software
(compare to OSI model, and middleware applications)
image from http://www.zend.com/zend/art/intro.php
8. PHP Scripts
• Typically file ends in .php--this is set by the web
server configuration
• Separated in files with the <?php ?> tag
• php commands can make up an entire file, or can
be contained in html--this is a choice….
• Program lines end in ";" or you get an error
• Server recognizes embedded script and executes
• Result is passed to browser, source isn't visible
<P>
<?php $myvar = "Hello World!";
echo $myvar;
?>
</P>
9. Parsing
• We've talk about how the browser can read a text
file and process it, that's a basic parsing method
• Parsing involves acting on relevant portions of a
file and ignoring others
• Browsers parse web pages as they load
• Web servers with server side technologies like php
parse web pages as they are being passed out to
the browser
• Parsing does represent work, so there is a cost
10. Two Ways
• You can embed sections of php inside html:
<BODY>
<P>
<?php $myvar = "Hello World!";
echo $myvar;
</BODY>
• Or you can call html from php:
<?php
echo "<html><head><title>Howdy</title>
…
?>
11. What do we know already?
• Much of what we learned about javascript
holds true in php (but not all!), and other
languages as well
$name = "bil";
echo "Howdy, my name is $name";
echo "What will $name be in this line?";
echo 'What will $name be in this line?';
echo 'What's wrong with this line?';
if ($name == "bil")
{
// Hey, what's this?
echo "got a match!";
}
12. Variables
• Typed by context (but one can force type), so it's
loose
• Begin with "$" (unlike javascript!)
• Assigned by value
• $foo = "Bob"; $bar = $foo;
• Assigned by reference, this links vars
• $bar = &$foo;
• Some are preassigned, server and env vars
• For example, there are PHP vars, eg. PHP_SELF,
HTTP_GET_VARS 00
13. phpinfo()
• The phpinfo() function shows the php
environment
• Use this to read system and server
variables, setting stored in php.ini, versions,
and modules
• Notice that many of these data are in arrays
• This is the first script you should write…
00_phpinfo.php
14. Variable Variables
• Using the value of a variable as the name of
a second variable)
$a = "hello";
$$a = "world";
• Thus:
echo "$a ${$a}";
• Is the same as:
echo "$a $hello";
• But $$a echoes as "$hello"….
00_hello_world.php
15. Operators
• Arithmetic (+, -, *, /, %) and String (.)
• Assignment (=) and combined assignment
$a = 3;
$a += 5; // sets $a to 8;
$b = "Hello ";
$b .= "There!"; // sets $b to "Hello There!";
• Bitwise (&, |, ^, ~, <<, >>)
• $a ^ $b(Xor: Bits that are set in $a or $b but not
both are set.)
• ~ $a (Not: Bits that are set in $a are not set,
and vice versa.)
• Comparison (==, ===, !=, !==, <, >, <=, >=)
16. Coercion
• Just like javascript, php is loosely typed
• Coercion occurs the same way
• If you concatenate a number and string, the
number becomesa string
17_coercion.php
17. Operators: The Movie
• Error Control (@)
• When this precedes a command, errors generated are ignored
(allows custom messages)
• Execution (` is similar to the shell_exec()
function)
• You can pass a string to the shell for execution:
$$oouuttppuutt == ``llss --aall``;;
$$oouuttppuutt == sshheellll__eexxeecc((""llss --aall""));;
• This is one reason to be careful about user set variables!
• Incrementing/Decrementing
++$a (Increments by one, then returns $a.)
$a++ (Returns $a, then increments $a by one.)
--$a (Decrements $a by one, then returns $a.)
$a-- (Returns $a, then decrements $a by one.)
18. Son of the Valley of Operators
• Logical
$a and $b And True if both $a and $b are true.
$a or $b Or True if either $a or $b is true.
$a xor $b Xor True if either $a or $b is true,
but not both.
! $a Not True if $a is not true.
$a && $b And True if both $a and $b are true.
$a || $b Or True if either $a or $b is true.
• The two ands and ors have different
precedence rules, "and" and "or" are lower
precedence than "&&" and "||"
• Use parentheses to resolve precedence
problems or just to be clearer
19. Control Structures
• Wide Variety available
• if, else, elseif
• while, do-while
• for, foreach
• break, continue, switch
• require, include, require_once, include_once
20. Control Structures
• Mostly parallel to what we've covered
already in javascript
• if, elseif, else, while, for, foreach, break and
continue
21. Switch
• Switch, which we've seen, is very useful
• These two do the same
things….
if ($i == 0) {
echo "i equals 0";
} elseif ($i == 1) {
echo "i equals 1";
} elseif ($i == 2) {
echo "i equals 2";
}
switch ($i) {
case 0:
echo "i equals 0";
break;
case 1:
echo "i equals 1";
break;
case 2:
echo "i equals 2";
break;
}
example from http://us3.php.net/manual/en/control-structures.switch.php
22. Nesting Files
• require(), include(), include_once(), require_once() are
used to bring in an external file
• This lets you use the same chunk of code in a number
of pages, or read other kinds of files into your program
• Be VERY careful of using these anywhere close to user
input--if a hacker can specify the file to be included,
that file will execute within your script, with whatever
rights your script has (readfile is a good alternative if
you just want the file, but don't need to execute it)
• Yes, Virginia, remote files can be specified
23. Example: A Dynamic Table
• I hate writing html tables
• You can build one in php
• This example uses pictures and builds a
table with pictures in one column, and
captions in another
• The captions are drawn from text files
• I'm using tables, but you could use css for
placement easily…
24. Arrays
• You can create an array with the array function, or use the
explode function (this is very useful when reading files into
web programs…)
$my_array = array(1, 2, 3, 4, 5);
$pizza = "piece1 piece2 piece3 piece4 piece5 piece6";
$pieces = explode(" ", $pizza);
• An array is simply a variable representing a keyed list
• A list of values or variables
• If a variable, that var can also be an array
• Each variable in the list has a key
• The key can be a number or a text label
25. Arrays
• Arrays are lists, or lists of lists, or list of lists of
lists, you get the idea--Arrays can be multi-dimensional
• Array elements can be addressed by either by
number or by name (strings)
• If you want to see the structure of an array, use the
print_r function to recursively print an array inside
of pre tags
26. Text versus Keys
• Text keys work like number keys (well,
really, it's the other way around--number
keys are just labels)
• You assign and call them the same way,
except you have to assign the label to the
value or variables, eg:
echo "$my_text_array[third]";
$my_text_array = array(first=>1, second=>2, third=>3);
echo "<pre>";
print_r($my_text_array);
echo "</pre>";
27. Walking Arrays
• Use a loop, eg a foreach loop to walk
through an array
• while loops also work for arrays with
numeric keys--just set a variable for the
loop, and make sure to increment that
variable within the loop
$colors = array('red', 'blue', 'green', 'yellow');
foreach ($colors as $color) {
echo "Do you like $color?n";
}
05_arrays.php
28. 05_arrays.php
• You can't echo an
array directly…
• You can walk through
an echo or print() line
by line
• You can use print_r(),
this will show you the
structure of complex
arrays--that output is
to the right, and it's
handy for learning the
structure of an array
Array
(
[1] => Array
(
[sku] => A13412
[quantity] => 10
[item] => Whirly Widgets
[price] => .50
)
[2] => Array
(
[sku] => A43214
[quantity] => 142
[item] => Widget Nuts
[price] => .05
)
29. Multidimensional Arrays
• A one dimensional array is a list, a spreadsheet or other columnar data
is two dimensional…
• Basically, you can make an array of arrays
$multiD = array
(
"fruits" => array("myfavorite" => "orange", "yuck" =>
"banana", "yum" => "apple"),
"numbers" => array(1, 2, 3, 4, 5, 6),
"holes" => array("first", 5 => "second", "third")
);
• The structure can be built array by array, or declared with a single
statement
• You can reference individual elements by nesting:
echo "<p>Yes, we have no " . $multiD["fruits"]["yuck"] . "
(ok by me).</p>";
• print_r() will show the entire structure, but don’t fo0r1gae_tatrhrea ypsr.ep htapgs
30. Getting Data into arrays
• You can directly read data into individual
array slots via a direct assignment:
$pieces[5] = "poulet resistance";
• From a file:
• Use the file command to read a delimited file
(the delimiter can be any unique char):
$pizza = file(./our_pizzas.txt)
• Use explode to create an array from a line
within a loop:
$pieces = explode(" ", $pizza);
31. The Surface
• The power of php lies partially in the wealth of
functions---for example, the 40+ array functions
• array_flip() swaps keys for values
• array_count_values() returns an associative array of all
values in an array, and their frequency
• array_rand() pulls a random element
• array_unique() removes duppies
• array_walk() applies a user defined function to each
element of an array (so you can dice all of a dataset)
• count() returns the number of elements in an array
• array_search() returns the key for the first match in an
array
08_array_fu.php
32. Using External Data
• You can build dynamic pages with just the
information in a php script
• But where php shines is in building pages
out of external data sources, so that the web
pages change when the data does
• Most of the time, people think of a database
like MySQL as the backend, but you can
also use text or other files, LDAP, pretty
much anything….
33. Standard data files
• Normally you'd use a tab delimited file, but you can
use pretty much anything as a delimiter
• Files get read as arrays, one line per slot
• Remember each line ends in n, you should clean
this up, and be careful about white space
• Once the file is read, you can use explode to break
the lines into fields, one at a time, in a loop….
34. Standard data files
• You can use trim() to clean white space and
returns instead of str_replace()
• Notice that this is building an array of arrays
$iitteemmss==ffiillee((""..//mmyyddaattaa..ttxxtt""));;
ffoorreeaacchh (($$iitteemmss aass $$lliinnee))
{{
$$lliinnee == ssttrr__rreeppllaaccee((""nn"",, """",, $$lliinnee));;
$$lliinnee == eexxppllooddee((""tt"",, $$lliinnee));;
//// ddoo ssoommeetthhiinngg wwiitthh $$lliinnee aarrrraayy
}}
36. 06_more_arrays.php
• This is a simple script to read and process a text
file
• The data file is tab delimited and has the column
titles as the first line of the file
37. How it works
• The script uses the first line to build text labels for
the subsequent lines, so that the array elements
can be called by the text label
• If you add a new column, this script
compensates
• Text based arrays are not position dependent…
• This script could be the basis of a nice function
• There are two version of this, calling two different
datafiles, but that's the only difference
39. Alternative syntax
• Applies to if, while, for, foreach, and switch
• Change the opening brace to a colon
• Change the closing brace to an endxxx
statement
<?php if ($a == 5): ?>
A is equal to 5
<?php endif; ?>
<?php
if ($a == 5):
echo "a equals 5";
echo "...";
else:
echo "a is not 5";
endif;
?> 07
sample code from http://us3.php.net/manual/en/control-structures.alternative-syntax.php