Dig1108C Lesson 2
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This document provides an introduction to server-side programming with PHP. It discusses PHP as a distinct language with its own vocabulary and grammatical rules like syntax, semantics, and structure. It also covers PHP grammar and vocabulary like reserved words, expressions, data types, variables, and basic expressions. The document directs the reader to the PHP manual and provides assignment questions to work with arrays, functions, anonymous functions, and memory settings in PHP. It concludes with sections on data types, working with variables, and assignment operators.
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PHP is a server-side scripting language commonly used for web development. It allows code to be embedded within HTML pages and run on the server, which can then access databases, files, and other server resources. PHP code is enclosed within <?php ?> tags and the output replaces the tags in the page sent to the client. Basic PHP setup involves installing the PHP engine on a web server like Apache or IIS.
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DIG1108 Lesson 8
This document provides an overview of server-side development concepts like functions, conditionals, and loops. It discusses keywords in programming languages that have special meanings like if, else, and, or. It provides an example of a function that uses conditionals. It outlines the rules for pair programming and test-driven development that will be used during code challenges. It assigns a challenge to write basic calculator functions using tests and handle errors without crashes. It concludes with questions for reflection on the process.
DIG1108 Lesson 7
This document summarizes a lesson on server-side programming that covers functions, assertion testing, software testing, different types of testing, test-driven development, and pairing programming. It discusses functions, assertions, unit testing, integration testing, and test-driven development processes. It provides an example dojo assignment to write basic math functions using assertions and handling errors.
DIG1108 Lesson 6
This document provides an overview of server-side development concepts covered in week six including arrays, control flow statements, loops, procedural programming, functions, and modular programming. Key points include:
- Arrays can use numeric or associative indices to store multiple values.
- Control flow statements include conditional and looping structures like if/else, while, for, and foreach.
- Functions contain reusable blocks of code that are declared before use. Arguments are passed in and values may be returned.
- Modular programming separates a program into independent and interchangeable modules that each perform a specific task.
DIG1108 Lesson 5
This document discusses lists, dictionaries, arrays, and control flow statements like loops and conditionals in server-side programming. It provides examples of using lists, dictionaries, and arrays in PHP. It also discusses different types of loops like for, while, do-while and foreach loops. Students are assigned to find examples of lists, arrays, and looping/conditional logic in their code and document them.
DIG1108 Lesson 4
This document discusses server-side programming and conditional logic. It begins with an overview of basic Git workflows for saving work, branching, sharing code, and updating code. It then covers conditional statements and expressions, explaining that computer science relies on Boolean algebra for "if this is true, do this" conditional logic. The document provides examples of guarding expressions, conditional operators, nested conditionals, and assigning values based on conditional checks. It concludes with an assignment to diagram conditional logic found in code by examining nested "if-then-else" statements and creating workflow diagrams and truth tables.
Dig1108 Lesson 3
This document provides an introduction and recap of server-side programming concepts covered in Lesson Three, including data types, operators, order of operations, programming blocks, coding conventions, and good and bad coding practices. It discusses literals, arithmetic, assignment, comparison operators, string operators, order of operations, programming blocks, coding conventions, readability, and provides examples. It also assigns students to identify good and bad code examples based on coding style and to fetch and merge code from an upstream repository.
Dig1108 c lesson1
This document provides an introduction to a class on server-side programming. It discusses the instructor's contact information and an overview of what will be covered in the class, including writing programs, using version control systems, completing projects, and collaborating with other students. It also outlines what students need for the class, including a Cloud9 and Github account. The first lesson introduces programming and development concepts and the tools that will be used, including Cloud9 as an IDE and Github for source control. The assignment is to create Github and Cloud9 accounts and set up a basic workspace.
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Dig1108C Lesson 2
- 1. INTRO TO SERVER-SIDE PROGRAMMING Friday, September 6, 13
- 2. PHP As A Language PHP can be treated as a distinct language with it’s own rules It has it’s own vocabulary - words that are familiar to the language PHP has distinct grammatical rules Syntax - rules to determine the composition of sentences Semantics - the meaning and significance of words Structure - the relationship between words Friday, September 6, 13
- 3. Grammar and Vocaublary Reserved Words and Keywords: if, else, ifelse; for, foreach, while, do; and, or, xor; public, private, protected Expressions: semicolon (;), curly braces ({...}) Arithmetic: addition (+), subtraction (-), multiplication(*) Comparisons: equality (==), inequalities (!=), ranges (<=) Special cases: dollar($), braces ([...]), operators (&, |, <<) User & Built-in Constants: PHP_VERSION, E_ERROR, E_WARNING, E_NOTICE, MY_CONSTANT User & Built-in Functions: shuffle(), printf(), strlen() Friday, September 6, 13
- 4. The PHP Manual - http://php.net/manual/en/ In your “assignments” workspace, create a file called “assignment-2.1.md” to work on your answers to the following questions: Find at least three different methods to get a random value from an array with a built-in function (Look in Array Functions) What does the built-in md5() function do? What is the default return value? What built-in functions work similarly? What is another name for “anonymous functions” in PHP and where are they in the manual? When were they added and what was the last feature added? What is the default value of the “memory_limit” setting in PHP? What value would I set to it in order to allocate ALL memory to PHP? How could I set that value and where would I find that in the manual? Friday, September 6, 13
- 5. Data Types - Literals Literals are also known as Primitive Values Representative of fixed values, such as numbers, text, etc Four scalar types: boolean, integer float (double) & string Two compound types: array & object Three special types: resource, NULL & callable What makes 1 different from 1.0? Friday, September 6, 13
- 6. Working With Variables Variables are storage locations with identifiers that contain values Variables are places to store your literals. Think of a bucket. $a_variable // This is a bucket to hold literals! $a_variable = “some value” // Now the bucket has stuff in it $a_variable = “something else” // The bucket remains, but a new string is put in it Variables in PHP are always preceded with a dollar sign ($) Variables are not very useful empty, so they are usually followed with an assignment operator Friday, September 6, 13
- 7. Assignment Operators An operator accepts one or more literals or variables, performs an operation on them and returns the results, like a calculator. $total = 1 // total is defined as 1 $total = $total + 1 // total is now 2 $total += 2 // total is now 4 (old total plus 2) Orders of operation and precedence still apply here! Friday, September 6, 13
- 8. Basic “Phrases” Variables, basic expressions and comments: $david = ‘awesome’; // not entirely true Basic assignment and arithmetic operators: $counter = 1; $counter = 2; $counter = 1 + 1; $counter += 2; Getting feedback from PHP: echo $counter; var_dump($counter); var_export($counter); Friday, September 6, 13
- 9. ASSIGNMENT TWO Friday, September 6, 13
- 10. Pulling Files From Git Open your “assignments” workspace in Cloud9 In the console, type “git remote -v” to see the repository URL for the remote named “origin” Connect the “assignments” repository from the class to yours: Go to https://github.com/vcc-dig1108/assignments Copy the repo URL to your clipboard In the Cloud9 console, type “git remote add upstream “ (with the space at the end) and paste the URL that you copied Now “git remote -v” should list “origin” and “upstream” Friday, September 6, 13
- 11. Pulling Files From Git (cont) To get the updated code from remote use “git fetch” (try with -h) Use “git merge” to roll that update into your local branch You should now have the updated file “homework-2.1.md” All instructions are in the assignment: Open the project that you forked earlier or fork one now Grab around 50 lines of PHP from that project that show examples of literals, variables, function calls and other colored (important) things If there is something that you don’t recognize, note it for later The goal is to practice “reading” PHP grammar for now Friday, September 6, 13