Php
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The document discusses several web technologies: - HTML is the main markup language for web pages and provides a static structure. - CSS is used to describe the presentation and formatting of HTML pages through style sheets. - JavaScript allows for dynamic interactions and one-way communication in web pages. - PHP brings dynamic interactivity to web pages by running server-side code that can output HTML, manipulate strings, perform operations, and access form data. It allows two-way communication between client and server.
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Php
- 1. PHP
- 3. HyperText Markup Language (HTML) is the main markup language for web pages
- 4. Why HTML?
- 5. What is CSS?
- 6. Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation semantics (the look and formatting) of HTML h1 { color: white; background-color: orange; } h2 { color: white; background-color: green; }
- 7. Why CSS?
- 8. Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation semantics (the look and formatting) of HTML h1 { color: white; background-color: orange; } h2 { color: white; background-color: green; }
- 10. JavaScript is a scripting language function sum() { var i, x = 0; for (i = 0; i < arguments.length; ++i) { x += arguments[i]; } return x; }
- 11. Why Javascript?
- 12. HTML provides only one way communication Why the hell don’t you talk to me? Hey, are you there?
- 13. HTML is static and boring.
- 14. With pure HTML web pages, the server simply serves up static HTML that can only display content.
- 15. With a little help from the server Okay, PHP brings web pages to life
- 17. #webpage #static_page #dynamic_page #form
- 18. PHP Syntax <html> <body> <?php echo "Hello World"; ?> </body> </html>
- 19. String <?php $txt="Hello World"; echo $txt; ?> Concatenation Operator <?php $txt1="Hello World!"; $txt2="What a nice day!"; echo $txt1 . " " . $txt2; ?> strlen() strlen("Hello world!") strpos strpos("Hello world!","world");
- 20. Function function functionName() { echo(“Hello world”); }
- 21. Use PHP to access form data
- 22. PHP scripts must live on a server
- 23. A variable is a container that you can store data in.
- 29. If … else
- 30. Array Numeric Arrays $cars=array("Saab","Volvo","BMW","Toyota"); Associative Arrays $ages = array("Peter"=>32, "Quagmire"=>30, "Joe"=>34);
- 31. For loops for ($i=1; $i<=5; $i++) { echo "The number is " . $i . "<br />"; }