PHP scripting and MySQL database are one of the worlds most popular open source techniques used to develop websites. Add an advantage of a MVC framework to it and you can develop powerful, dynamic and easy to maintain database driven websites. PHP, MySQL and CakePHP are also platform independent i.e. You can easily port a website developed on a windows machine to a Linux based apache web server with minimal to no changes. The CakePHP MVC architect also adds some additional security against threats like SQL injections, hacking etc.
The Browser Object Model (BOM) in JavaScript includes the properties and methods for JavaScript to interact with the web browser.
BOM provides you with window object, for example, to show the width and height of the window. It also includes the window.screen object to show the width and height of the screen.
This presentation walks through essential points for developing and working with REST APIs or web services to communicate through various platforms. This also explains HTTP methods.
This slideshow shows the threat ARP poisoning poses by allowing Packet sniffing attacks using Wireshark on a college network and provides possible mitigation action for the vulnerability
Webinar: PHP and MySQL - Server-side Scripting Language for Web Development Edureka!
The free webinar on PHP and MySQL titled "PHP and MySQL - Server-side Scripting Language for Web Development" was conducted by Edureka on 22nd November 2014
The Browser Object Model (BOM) in JavaScript includes the properties and methods for JavaScript to interact with the web browser.
BOM provides you with window object, for example, to show the width and height of the window. It also includes the window.screen object to show the width and height of the screen.
This presentation walks through essential points for developing and working with REST APIs or web services to communicate through various platforms. This also explains HTTP methods.
This slideshow shows the threat ARP poisoning poses by allowing Packet sniffing attacks using Wireshark on a college network and provides possible mitigation action for the vulnerability
Webinar: PHP and MySQL - Server-side Scripting Language for Web Development Edureka!
The free webinar on PHP and MySQL titled "PHP and MySQL - Server-side Scripting Language for Web Development" was conducted by Edureka on 22nd November 2014
Part 2 - Hadoop Data Loading using Hadoop Tools and ODI12cMark Rittman
Delivered as a one-day seminar at the SIOUG and HROUG Oracle User Group Conferences, October 2014.
There are many ways to ingest (load) data into a Hadoop cluster, from file copying using the Hadoop Filesystem (FS) shell through to real-time streaming using technologies such as Flume and Hadoop streaming. In this session we’ll take a high-level look at the data ingestion options for Hadoop, and then show how Oracle Data Integrator and Oracle GoldenGate leverage these technologies to load and process data within your Hadoop cluster. We’ll also consider the updated Oracle Information Management Reference Architecture and look at the best places to land and process your enterprise data, using Hadoop’s schema-on-read approach to hold low-value, low-density raw data, and then use the concept of a “data factory” to load and process your data into more traditional Oracle relational storage, where we hold high-density, high-value data.
This talk will give an overview of Apache Nutch, its main components, how it fits with other Apache projects and its latest developments.
Apache Nutch was started exactly 10 years ago and was the starting point for what later became Apache Hadoop and also Apache Tika. Nutch is nowadays the tool of reference for large scale web crawling.
In this talk I will give an overview of Apache Nutch and describe its main components and how Nutch fits with other Apache projects such as Hadoop, SOLR or Tika.
The second part of the presentation will be focused on the latest developments in Nutch and the changes introduced by the 2.x branch with the use of Apache GORA as a front end to various NoSQL datastores.
Why use big data tools to do web analytics? And how to do it using Snowplow a...yalisassoon
There are a number of mature web analytics products that have been on the market for ~20 years. Big data tools have only really taken off in the last 5 years. So why use big data tools mine web analytics data?
In this presentation, I explore the limitations of traditional approaches to web analytics, and explain how big data tools can be used to address those limitations and drive more value from the underlying data. I explain how a combination of Snowplow and Qubole can be used to do this in practice
Python in the Hadoop Ecosystem (Rock Health presentation)Uri Laserson
A presentation covering the use of Python frameworks on the Hadoop ecosystem. Covers, in particular, Hadoop Streaming, mrjob, luigi, PySpark, and using Numba with Impala.
Titan is an open source distributed graph database build on top of Cassandra that can power real-time applications with thousands of concurrent users over graphs with billions of edges. Graphs are a versatile data model for capturing and analyzing rich relational structures. Graphs are an increasingly popular way to represent data in a wide range of domains such as social networking, recommendation engines, advertisement optimization, knowledge representation, health care, education, and security.
This presentation discusses Titan's data model, query language, and novel techniques in edge compression, data layout, and vertex-centric indices which facilitate the representation and processing of Big Graph Data across a Cassandra cluster. We demonstrate Titan's performance on a large scale benchmark evaluation using Twitter data.
Presented at the Cassandra 2012 Summit.
This is the basis for some talks I've given at Microsoft Technology Center, the Chicago Mercantile exchange, and local user groups over the past 2 years. It's a bit dated now, but it might be useful to some people. If you like it, have feedback, or would like someone to explain Hadoop or how it and other new tools can help your company, let me know.
1 Introduction to PHP Overview This lab walks y.docxhoney725342
1
Introduction to PHP
Overview
This lab walks you through using PHP to create simple applications. PHP is popular for many Web
applications, so becoming comfortable with the syntax of PHP will help you diagnose and identify
potential security issues.
Learning Outcomes:
At the completion of the lab you should be able to:
1. Execute PHP scripts at the shell prompt within the Ubuntu virtual machine
2. Create simple PHP applications comprised of basic syntax, variables, strings, selection
statements and repetition statements.
Lab Submission Requirements:
After completing this lab, you will submit a word (or PDF) document that meets all of the requirements in
the description at the end of this document. In addition, your PHP file should be submitted. You can submit
multiple files in a zip file.
Virtual Machine Account Information
Your Virtual Machine has been preconfigured with all of the software you will need for this class. The
default username and password are:
Username : umucsdev
Password: umuc$d8v
Part 1 – Execute PHP scripts at the shell prompt within the Ubuntu virtual machine
The Virtual Machine already has PHP installed. It is also configured to run properly on your Apache2 web
server. This exercise will walk through creating a simple PHP script and running it both at the shell
prompt and from a Web browser. We will use the gedit text editor to create the PHP file. Running the
script from the shell prompt is very useful for debugging as syntax errors will appear when code issues
occur.
1. Assuming you have already launched and logged into your SDEV32Bit Virtual Machine (VM)
from the Oracle VirtualBox, click on the gedit icon found on the left side of the screen of your
VM.
2
2. After clicking the terminal icon a terminal will appear
Click to open text editor
3
3. To create a new document just begin typing or copying and pasting the PHP code shown below:
<!-- Simple Hello, World PHP Script
Date: Jan 01, XXXX
Author: Dr. Robertson
Title: HelloSDEV300.php
description: Print Hello greeting
-->
<!DOCTYPE html>
<!-- HelloPHP.html -->
<!-- Jan 22, XXXX -->
<html>
<head>
<title>My First PHP Script </title>
</head>
<body>
<h1>Welcome to SDEV 300. </h1>
<h1>The following greeting is from PHP </h1>
<?php
echo "Hello, SDEV 300 students and class!</br>";
echo "The current time is " . date("g:i:h a"); ?>
<p>
</body>
</html>
Save the file in the /var/www/html/week3 folder in a file named helloSDEV300.php. Note, you may
need to create a folder named week3. Recall the /var/www/html is the location of the Apache2 web
server html files. Creating separate folders for each week or application will help organize the server.
4
Launch the Firefox browser and run your home page by entering the following URL:
localhost/helloSDEV300.php
5
4. You can also run the php code directly from ...
PHP: Why PHP and MySQL? Server-side scripting, PHP syntax and variables, comments, types, control structures, branching, looping, termination, functions, passing information with PHP, GET, POST, formatting form variables, superglobal arrays, strings and string functions, regular expressions, arrays, number handling, basic PHP errors/problems
You can also type a keyword to search online for the video that best fits your document. To make your document look professionally produced, Word provides header, footer, cover page, and text box designs that complement each other.
What to learn during the 21 days Lockdown | EdurekaEdureka!
Register Here: https://resources.edureka.co/21-days-learning-plan-webinar/
In light of the complete national lockdown for 21 days, we invite you to join a FREE webinar by renowned Mentor and Advisor, Nitin Gupta as he helps you create a 21-day learning gameplan to maximize returns for your career.
The webinar will help freshers and experienced professionals to capitalize on these 21 days and figure out the best technologies to learn while confined to home.
You will also get all your questions and doubts resolved in real-time.
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Top 10 Dying Programming Languages in 2020 | EdurekaEdureka!
YouTube Link: https://youtu.be/LSM7hD6GM4M
Get Edureka Certified in Trending Programming Languages: https://www.edureka.co
In this highly competitive IT industry, everyone wants to learn programming languages that will keep them ahead of the game. But knowing what to learn so you gain the most out of your knowledge is a whole other ball game. So, we at Edureka have prepared a list of Top 10 Dying Programming Languages 2020 that will help you to make the right choice for your career. Meanwhile, if you ever wondered about which languages are slated for continuing uptake and possible greatness, we have a list for that, too.
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Top 5 Trending Business Intelligence Tools | EdurekaEdureka!
YouTube Link: https://youtu.be/eEwq_mPd1iI
Edureka BI Certification Training Courses: https://www.edureka.co/bi-and-visualization-certification-courses
Receiving insights and finding trends is absolutely critical for businesses to scale and adapt as the years go on. This is exactly what business intelligence does and the best thing about these software solutions is that their potential uses are practically unlimited.
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Tableau Tutorial for Data Science | EdurekaEdureka!
YouTube Link:https://youtu.be/ZHNdSKMluI0
Edureka Tableau Certification Training: https://www.edureka.co/tableau-certification-training
This Edureka's PPT on "Tableau for Data Science" will help you to utilize Tableau as a tool for Data Science, not only for engagement but also comprehension efficiency. Through this PPT, you will learn to gain the maximum amount of insight with the least amount of effort.
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YouTube Link:https://youtu.be/CVv8zhYEjUE
Edureka Python Certification Training: https://www.edureka.co/data-science-python-certification-course
This Edureka PPT on 'Python Programming' will help you learn Python programming basics with the help of interesting hands-on implementations.
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YouTube Link:https://youtu.be/LvgqSMlIXFs
Get Edureka Certified in Trending Project Management Certifications: https://www.edureka.co/project-management-and-methodologies-certification-courses
Whether you want to scale up your career or are trying to switch your career path, Project Management Certifications seems to be a perfect choice in either case. So, we at Edureka have prepared a list of Top 5 Project Management Certifications that you must check out in 2020 for a major career boost.
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Top Maven Interview Questions in 2020 | EdurekaEdureka!
YouTube Link: https://youtu.be/5iTcAR4fScM
**DevOps Certification Courses - https://www.edureka.co/devops-certification-training***
This video on 'Maven Interview Questions' discusses the most frequently asked Maven Interview Questions. This PPT will help give you a detailed explanation of the topics which will help you in acing the interviews.
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** Linux Administration Certification Training - https://www.edureka.co/linux-admin **
Linux Mint is the first operating system that people from Windows or Mac are drawn towards when they have to switch to Linux in their work environment. Linux Mint has been around since the year 2006 and has grown and matured into a very user-friendly OS. Do watch the PPT till the very end to see all the demonstrations.
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How to Deploy Java Web App in AWS| EdurekaEdureka!
YouTube Link:https://youtu.be/Ozc5Yu_IcaI
** Edureka AWS Architect Certification Training - https://www.edureka.co/aws-certification-training**
This Edureka PPT shows how to deploy a java web application in AWS using AWS Elastic Beanstalk. It also describes the advantages of using AWS for this purpose.
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YouTube Link:https://youtu.be/phPCkkWT76k
*** Edureka Digital Marketing Course: https://www.edureka.co/post-graduate/digital-marketing-certification***
This Edureka PPT on "Top 10 Reasons to Learn Digital Marketing" will help you understand why you should take up Digital Marketing
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** RPA Training: https://www.edureka.co/robotic-process-automation-training**
This PPT on RPA in 2020 will provide a glimpse of the accomplishments and benefits provided by RPA. Also, it will list out the new changes and technologies that will collaborate with RPA in 2020.
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**DevOps Certification Courses - https://www.edureka.co/devops-certification-training **
This PPT shows how to configure Jenkins to receive email notifications. It also includes a demo that shows how to do it in 6 simple steps in the Windows machine.
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EA Algorithm in Machine Learning | EdurekaEdureka!
YouTube Link: https://youtu.be/DIADjJXrgps
** Machine Learning Certification Training: https://www.edureka.co/machine-learning-certification-training **
This Edureka PPT on 'EM Algorithm In Machine Learning' covers the EM algorithm along with the problem of latent variables in maximum likelihood and Gaussian mixture model.
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PGP in AI and Machine Learning (9 Months Online Program): https://www.edureka.co/post-graduate/machine-learning-and-ai
This Edureka PPT on "Cognitive AI" explains cognitive computing and how it helps in making better human decisions at work. Also, it explains the differences between cognitive computing and artificial intelligence.
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Edureka AWS Architect Certification Training - https://www.edureka.co/aws-certification-training
This Edureka PPT on AWS Cloud Practitioner will provide a complete guide to your AWS Cloud Practitioner Certification exam. It will explain the exam details, objectives, why you should get certified and also how AWS certification will help your career.
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Blue Prism Top Interview Questions | EdurekaEdureka!
YouTube Link: https://youtu.be/ykbRdUNIbyQ
** RPA Training: https://www.edureka.co/robotic-process-automation-certification-courses**
This PPT on Blue Prism Interview Questions will cover the Top 50 Blue Prism related questions asked in your interviews.
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AWS Architect Certification Training: https://www.edureka.co/aws-certification-training
This PPT will help you in understanding how AWS deals smartly with Big Data. It also shows how AWS can solve Big Data challenges with ease.
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A star algorithm | A* Algorithm in Artificial Intelligence | EdurekaEdureka!
YouTube Link: https://youtu.be/amlkE0g-YFU
** Artificial Intelligence and Deep Learning: https://www.edureka.co/ai-deep-learni... **
This Edureka PPT on 'A Star Algorithm' teaches you all about the A star Algorithm, the uses, advantages and disadvantages and much more. It also shows you how the algorithm can be implemented practically and has a comparison between the Dijkstra and itself.
Check out our playlist for more videos: http://bit.ly/2taym8X
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Kubernetes Installation on Ubuntu | EdurekaEdureka!
YouTube Link: https://youtu.be/UWg3ORRRF60
Kubernetes Certification: https://www.edureka.co/kubernetes-certification
This Edureka PPT will help you set up a Kubernetes cluster having 1 master and 1 node. The detailed step by step instructions is demonstrated in this PPT.
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DevOps Training: https://www.edureka.co/devops-certification-training
This Edureka DevOps Tutorial for Beginners talks about What is DevOps and how it works. You will learn about several DevOps tools (Git, Jenkins, Docker, Puppet, Ansible, Nagios) involved at different DevOps stages such as version control, continuous integration, continuous delivery, continuous deployment, continuous monitoring.
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Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
PHP and MySQL : Server Side Scripting For Web Development
1. PHP and MySQL : Server Side
Scripting For Web Development
View PHP & MYSQL Course at: http://www.edureka.co/php-mysql
For more details please contact us:
US : 1800 275 9730 (toll free)
INDIA : +91 88808 62004
Email Us : sales@edureka.co
For Queries:
Post on Twitter @edurekaIN: #askEdureka
Post on Facebook /edurekaIN
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Objectives
At the end of this module, you will be able to understand:
Basics of PHP
Conditional Logic and Loops
PHP Form Handling
PHP Functions
Object Oriented Concepts
Implement MySQL with PHP
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PHP & MySQL - Overview
PHP & MySQL is an open-source
PHP & MySQL are two key components in the open-source LAMP stack
It is the most appropriate tool for developing dynamic web pages. For example, we can develop informative forums,
chatting platforms, e-commerce shopping carts, CRM solutions, community websites and database driven sites
PHP with MySQL is a powerful combination showing the real power of Server-Side scripting
PHP has a wide range of MySQL functions available with the help of a separate module
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Benefits of PHP & MySQL
PHP web development means developing websites and dynamic web pages using the versatile and capable server-side
scripting language
CAPABLE
PLATFORM
INDEPENDENT
SUPPORTS ALL
MAJOR WEB
SERVERS
SUPPORTS ALL
MAJOR DATABASES
FREE OF
COST
FASTER
DEVELOPMENTS
LARGE
COMMUNITIES
EASY
PROVEN AND
TRUSTED
SECURE
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Intricacies of PHP & MySQL
Dynamic and Weak Typing
Variable Variables
Dynamic Arrays
Dynamic Constants
Dynamic Functions
Dynamic Code
Dynamic Includes
Built-in Functions
Superglobals
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What is PHP?
PHP is the web development language written by and for web developers.
PHP stands for Hypertext Preprocessor.
It was originally named as Personal Home Page Tools and later on as Professional Home Page.
It is a server-side script, which can be embedded in HTML or used as a standalone program script.
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Script in PHP
PHP can be embedded in HTML or can be written as stand-alone program by using special markup tags. They are:
<?php
//PHP code comes here
?>
We can write PHP script in always available Notepad or get some PHP specific IDE downloaded from internet.
We can call the file from web browser after saving it using .php extension in webserver directory.
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PHP Example
<html>
<head>
<title>PHP Example</title>
<body>
<?php echo “This is my first PHP script."; ?>
</body>
</html>
The rendered HTML of the above script looks like below:
<html>
<head>
<title>PHP Example</title>
<body>
<p> This is my first PHP script.</p>
</body>
</html>
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Environment Setup
To execute PHP script we need three components to be installed on our computer:
Web Server - PHP supports many web server, including Apache server and IIS.
Database - PHP supports many databases. But the extensively used is MySQL.
PHP Parser - A Parser is required to generate HTML output from PHP code.
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PHP Variables
A variable in any programming language is a name to store a value that can be referenced later as required.
In PHP, Variables are defined a name preceded by a dollar sign ($). Eg. $firstName, $last_Name etc.
The type of a variable depends upon the value of its values.
Equal to (=) operator is used to assign a value to a variable name, on the left-hand side and the value on the
right-hand side.
In PHP, variables are not required to be declared before assigning a value.
Data type for a variables is not required to be declared for a variable in PHP. Depending upon the value it is
automatically interpreted.
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Decision Making Statements
Statements that are used to perform certain functions depending on certain conditions are called Decision
making statements as given below:
• If…else statement
• elseif statement
• Switch statement
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If-elseif Statement
<?php
if($day ==5) {
print(“Five team members. <br>”);
} elseif($day ==4) {
print(“Four team members <br>”);
} elseif($day ==3) {
print(“Three team members <br>”);
} elseif($day ==2) {
print(“Two team members <br>”);
} elseif($day ==1) {
print(“One team members <br>”);
}
?>
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Switch Statement
<?php
switch($day)
{
case 3:
print(“Three golden rings <br>”);
break;
case 2:
print(“Two golden rings <br>”);
break;
default:
print(“One golden ring <br>”);
}
?>
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For Statement
A for statement execution starts with evaluation of initial-expression, which is initialization of counter variable .
Then evaluation of termination-check is done. if false, the for statement concludes, and if true, the statement
executes.
Finally, the loop-end-expression is executed and the loop begins again with termination–check.
Example:
<?php
for($counter=1 //initial expression
$counter<4; //termination checks
$counter++ //loop-end expressions) {
print(“$counter<br />”);
}
?>
Result:
1
2
3
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Foreach Statement
We use foreach loop to iterate through arrays and objects.
Example:
<?php
$months = array(“January", “February", “March", “April“,
”May”, ”June”, ”July”, ”August”, ”September”, ”October”,
”November”, ”December”);
foreach ($months as $value) {
echo "$value <br>";
}
?>
Result:
January
February
March
April
May
June
July
August
September
October
November
December
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While Statement
The while loop evaluates the condition expression as Boolean. if true, it executes statements and then starts
again by evaluating condition. If the condition is false, the loop terminates.
Example:
<?php
$count=1;
While($counter<=6)
{
print(“Counter value is $counter <br>”);
$counter = $counter++;
}
?>
Result:
Count value is 1
Count value is 2
Count value is 3
Count value is 4
Count value is 5
Count value is 6
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Do-While Statement
The only difference between while and do-while is that the do-while will execute the statement at least once.
The statement is executed once, and then the expression is evaluated. If the expression is true, the statement is
repeated until the expression becomes false.
Example:
<?php
$counter=50;
do {
print(“Counter value is $counter. <br>”);
$counter = $counter + 1;
}
While($counter<=10)
?>
Result:
Counter value is 50.
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Break Statement
The break command exits from the inner most loop statements that contain it.
Example:
<?php
for($x=1; $x<10; $x++) {
If($x % 2 !=0) {
break;
print(“$x “);
}
}
?>
Result:
The above code prints nothing because
1 is odd which terminates the for loop
immediately.
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Continue Statement
The continue command skips to the end of the current iteration of the innermost loop that contains it.
Example:
<?php
for($x=1; $x<10; $x++) {
if($x % 2 !=0) {
continue;
}
print(“$x “);
}
?>
Result:
2 4 6 8
Here, the continue statement will skip any
of odd numbers. It will print only the even
numbers.
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PHP Forms
Form is a web page which allows user to enter data.
Forms contains many elements like text box, text area, checkbox, radio button and submit button
User enters information in the form elements
And, the entered information are sent to the server for processing
Using HTML we can create forms and using PHP we can process form elements
Let us see an example in the upcoming slides
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HTML Form
See the below example for HTML form with two text boxes and one submit button
<html>
<body>
<form action=“save.php" method="post">
First Name: <input type="text" name=“firstname"><br>
Last Name: <input type="text" name=“lastname"><br>
<input type="submit">
</form>
</body>
</html>
The user enters the above information and clicks the submit button, the information is sent to a file called
“save.php”
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Processing Forms
The form data is sent to a PHP file for processing
We can send form data to server using two methods
• GET method
• POST method
In the previous code, we used POST method to send data. See the below example, to display the submitted data.
To print the values, use the below code in save.php
<?php
Your First name is: <?php echo $_POST["firstname"]; ?>
<br>
Your Lastname is: <?php echo $_POST["lastname"]; ?>
?>
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Get Method
GET method passes argument from one page to the next page.
It appends the indicated variable name(s) and values(s) to the URL. The value and the page name separated by
question-mark(?)
<form action=“display.php” method=“get”>
Name: <input type=“text” name=“name”><br/>
Email:<input type=“text” name=“email”><br/>
<input type=“submit” value=“submit”>
</form>
<?php
echo “Name: ”.$_GET*‘name’+;
echo “Email: ”.$_GET*‘email’+;
?>
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Get Method (Continued)
Advantage:
• It constructs an actual new and differentiable URL query string. Users can now bookmark this page
Disadvantage:
• The GET method is not suitable for logins because the username and password are fully visible onscreen as
well as potentially stored in the client browser’s memory as a visited page
• Every GET submission is recorded in the web server log, data set included
• Because the GET method assigns data to a server environment variable, the length of the URL is limited
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Post Method
POST is the preferred method of form submission
The form data is included in the body of the form when it is forwarding to the processing agent. There will be no
change in the URL
<form action=“display.php” method=“post”>
Name: <input type=“text” name=“name”><br/>
Email:<input type=“text” name=“email”><br/>
<input type=“submit” value=“submit”>
</form>
POST Method data can be accessed using $_POST variable
<?php
echo “Name: ”.$_POST*‘name’+;
echo “Email: ”.$_POST*‘email’+;
?>
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Post Method (Continued)
Advantages:
• It is more secure than GET because user-entered information is never visible in the URL
• It is much larger limit on the amount of data than can be passed
Disadvantages:
• The results at a given moment cannot be bookmarked
• This methods can be incompatible with certain firewall setups, which strip the form data as a security
measure
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PHP Functions
A function is a set of codes which are used to perform some specific tasks
Its main advantage is reusability. Instead of defining a code repeatedly, we can create functions and use them
when needed
The function will not execute directly when the program loads. We need to call a function
There are two types of function available in PHP
• Built-in functions - The real power of PHP is its functions. PHP has more than 1000 built-in functions. They
can be invoked directly
• User defined functions - We can also create our own functions. We will discuss about the creation of our
own functions in next slide
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PHP Functions Syntax
Example:
function functionName() {
set of code to be executed;
}
Syntax to call a function:
functionName();
Rules to follow while naming a function:
• Function names are NOT case-sensitive
• Function name starts with a letter or underscore
• Function name cannot start with numbers
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PHP Functions Return Value
Function can return a value. It will return one value or more than one value using array
It returns the value using the return keyword. If the return statement is found in the function it will stop
execution and send the value to the callback function.
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Function Parameters
Function parameters are variables passes to the function inside the parentheses. They are declared much like a
typical variable would be:
<?php
// multiply a value by 10 and return it to the caller
function multiply ($value) {
$value = $value * 10;
return $value;
}
$retval= multiply (10);
Print "Return value is $retvaln";
?>
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Object Oriented Concepts
Object Oriented Programming (OOP) is a programming concept used to design our application
• Applications can be of any type
• Web based application
• Window based application
• It is used to write programming in object model structure
Advantages of Object Oriented Programming
• Re-Usability of your code
• Easy to Maintain
• Good Level of Abstraction
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Classes
Defining PHP Classes
• Class is a user defined data type which includes functions and member variables
• It is used to define object. It is the blueprint of the object
Class Declaration
• Class is declared using class keyword followed by the name
• A set of braces used to declare variables and functions
• Variables can be declared using var keyword followed by $
<?php
class classname {
var$var1;
var$var2 = "constant text";
function myfunc($arg1, $arg2) {
//function code
}
}
?>
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Creating Objects in PHP
In Object Oriented language, properties are called member variables. And, behaviors are called member
functions
• Once we defined our class, then we can create as many objects using the new operator
• Pen is class, Hero pen, Reynolds etc are called its objects
Syntax
$objectname= new classname();
Example:
$hero = new Pen;
$reynolds= new Pen;
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Calling Member Functions
After creating objects, we can access our member functions
We can only access the member function of the class of which we created objects
Let us see how to access member functions using the objects $hero, $reynolds
Example
Assigning values to the object $hero by accessing its member functions
$hero -> setPrice("100"); //assigns value 100 to price variable
$hero -> setColor("Green"); //assigns value green to color variable
$hero -> setType("Ink Pen"); //assigns value Ink Pen to type variable
$hero -> setWritingcolor(“blue”); //assigns value blue to writing color of the pen
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Constructor Functions
Constructor is a special type of function
It is automatically invoked when an object is created. So we can use this function for initialization
To define a constructor, PHP provides a special function called __construct(). We can pass any number of
arguments to this function
A function can also become a constructor, if it defined by the same name of the class
Two ways to declare constructors
• __construct() function
• Define function using same class name
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Constructor Functions (Continued)
Method 1:
class classname
{
function __construct(p1, p2, ..., pN]){
/* Class initialization code */
}
}
Method 2:
class classname
{
function classname(p1, p2, ..., pN]){
/* Class initialization code */
}
}
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Inheritance
Inheritance is the method of inheriting one class properties to other class
We can achieve this by using ‘extends’ keyword
Class parentclass
{
//parent class definition
}
Class childclass extends parentclass
{
//child class definition
}
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Function Overriding
Function overriding is nothing but overriding the function of parent class to child class and modify those
functions
Using overriding, we can alter function definition in child class
To override, we need to create same function in sub class which it is in base class
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class baseclass {
public function one() {
echo “First function”;
}
public function two() {
echo “second function”;
}
}
class childclass extends baseclass {
function two($text) //overriding function2
{
echo "$text ";
}
}
$text = new childclass();
$text->two("Sachin");//it will print Sachin
Function Overriding
Example:
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Access Modifiers
Access modifiers is nothing but the level of access and the visibility of the member variables and member
functions
We can use this access modifiers to show or hide data
We have three access modifiers in PHP
• Private
• Protected
• Public
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Final Keyword
Final is a keyword
If we define the class as final then we cannot extend the class
If we declare the method as final we cannot override the method
Syntax for Defining Function as Final
final public function functioname()
{
//function definition comes here
}
Syntax for Defining Class as Final
final class classname
{
//class definition comes here
}
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Database
A database is a unique application that organizes a group of data
Each database application has one or more APIs for creating, managing, accessing, searching and duplicating the
data it holds
Hence, the data can easily be accessed, managed, and updated
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MySQL Introduction
MySQL is a database system which is used on the web and runs on the server
It uses standard SQL
It is very fast, reliable and easy to use and also it is ideal for both small and large applications
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MySQL Connection
Using PHP Script
• Using mysql_connect() function we can open a database connection
• This function requires five parameters and all are optional
Syntax
mysql_connect(server,user,pass,new_link,client_flag);
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MySQL Disconnect
Using PHP Script
• Using mysql_close() function we can disconnect from MySQL server
• This function takes single parameter
Syntax
mysql_close(resource $link_identifier);
If we did not specify any parameter then the last opened database is closed
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Execute MySQL Queries
Using PHP function mysql_query() we can run a MySQL query.
This function needs two parameters and returns Boolean value
Function Syntax
mysql_query(sql_query, connection);
First parameter is mandatory. sql_query parameter is mandatory. It specifies the original query to be executed
The second parameter is optional. It is the connection parameter. If we did not specified, it takes the last opened
connection
Consider we are going to create a database ‘student_details’ to store student information
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Fetching Data
Select Query
• Data Manipulation –Select Query
• Select statement is used to fetch data from the database
• Fetching data can be simple queries or complex queries
To select data using PHP script, we can use mysql_query() function
• Write the select query inside the mysql_query() function
• This function is used to execute MySQL queries
• To fetch the selected data using select query we can use two functions
mysql_fetch_array()
mysql_fetch_assoc()
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Course Topics
Module 1
» PHP Basics and Conditional Logic
Module 2
» Functions and Error Handling
Module 3
» Object Oriented Programming
Module 4
» MySQL Installation and Basics
Module 5
» Advance Queries and Data Manipulation
using PHP
Module 6
» MVC Infrastructure Basics & Introduction to
CakePHP
Module 7
» CakePHP Controller, Views and Layout
Module 8
» Models and Database Interaction in CakePHP
Module 9
» Creating Dynamic Forms using CakePHP Html
Helpers
Module 10
» Using MVC & CakePHP to develop a website
52. Slide 52
LIVE Online Class
Class Recording in LMS
24/7 Post Class Support
Module Wise Quiz
Project Work
Verifiable Certificate
http://www.edureka.co/php-mysql
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