PHP: The easiest language to learn.
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PHP is an easy to learn scripting language used for web development. It allows printing of text, variables, arrays, and conditional logic. PHP scripts can connect to databases like MySQL and be embedded into HTML. Popular uses of PHP include content management systems, forums, e-commerce sites, and wikis. Resources for learning PHP include its manual, tutorials, frameworks, and free software tools built with PHP.
![Arrays/Hashes $arr = array(“Indian”, “Linux”, “User”, “Group”); $arr[1] = 'Libre'; print $arr[1]; $details = array( “abbr” => “ILUG”, “full” => “Indian Libre User Group” ); print $details['full'];](https://image.slidesharecdn.com/php-1227549974297257-8/85/PHP-The-easiest-language-to-learn-7-320.jpg)
![For/Foreach For $languages = array('PHP', 'Ruby', 'JavaScript', 'Python', 'Perl', 'Tcl'); for($i =0; $i < count($languages); $i++) { print $i+1 . “) “ . $languages[$i]; } Foreach foreach($languages as $lang) { print $lang; }](https://image.slidesharecdn.com/php-1227549974297257-8/85/PHP-The-easiest-language-to-learn-10-320.jpg)
![Executing Queries $sql_handle = mysql_query(“SELECT id,name FROM users WHERE status='1'”) or die(mysql_error()); $result = mysql_fetch_assoc($sql_handle); print $result['name'];](https://image.slidesharecdn.com/php-1227549974297257-8/85/PHP-The-easiest-language-to-learn-19-320.jpg)
![Fetching Result while($result = mysql_fetch_assoc($sql_handle)) { print $result['name']; } Use Database Abstraction layer!](https://image.slidesharecdn.com/php-1227549974297257-8/85/PHP-The-easiest-language-to-learn-20-320.jpg)
![action.php if($_POST['action'] == 'Save') { print $_POST['age']; }](https://image.slidesharecdn.com/php-1227549974297257-8/85/PHP-The-easiest-language-to-learn-23-320.jpg)
![[Biblioteca De San Vicente + Biblioteca Central De La Ua]](https://cdn.slidesharecdn.com/ss_thumbnails/pedro-fulgencio-lorena-maso-y-sergio-prez-biblioteca-de-san-vicente-biblioteca-central-de-la-ua-1229260335304650-1-thumbnail.jpg?width=560&fit=bounds)
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PHP: The easiest language to learn.
- 1. PHP The easiest language to learn. By Binny V A http://www.bin-co.com/php/
- 2. PHP P HP: H ypertext P reprocessor PHP: Hypertext Preprocessor PHP: Hypertext Preprocessor PHP: Hypertext Preprocessor PHP: ... Like GNU.
- 3. Its Easy – but Hard To use PHP, you must know... HTML SQL CSS JavaScript Web Server(Apache) Configuration Database Server(MySQL) Configuration
- 5. Hello World! <?php print “Hello World”; ?> php file.php firefox http://localhost/file.php
- 6. Variables $ Prefix for variables $name = 'ILUG' ; // String $year = 2008 ; // Number $is_php_good = true ; // Boolean // is a comment – as is /* to */ - PHP follows the C Syntax
- 7. Arrays/Hashes $arr = array(“Indian”, “Linux”, “User”, “Group”); $arr[1] = 'Libre'; print $arr[1]; $details = array( “abbr” => “ILUG”, “full” => “Indian Libre User Group” ); print $details['full'];
- 8. Operators + 5+2 Plus - 5-2 Minus * / == 1 == true === 1 !== true != % Mod = $a = 5 . “hel” . “lo” etc.
- 9. Control Flow: if If if($name == 'Binny') { print “Hi, Binny”; } elseif($name == 'Sameer') { print “Hello Sameer”; } else { print “Hello everybody”; }
- 10. For/Foreach For $languages = array('PHP', 'Ruby', 'JavaScript', 'Python', 'Perl', 'Tcl'); for($i =0; $i < count($languages); $i++) { print $i+1 . “) “ . $languages[$i]; } Foreach foreach($languages as $lang) { print $lang; }
- 11. While Loop $i = 1; While($i < 10) { print $i; $i++; }
- 12. Functions function hello($name) { print “Hello, $name.”; } hello(“World”);
- 13. OOPs and PHP PHP 5 has all the most necessary OOPs features... Constructors/Destructors Visibility (public, private, protected) Static Methods/Variables Abstraction Inheritance And more...
- 14. Class class Movie { public $name; function __construct($movie_name) { $this->name = $movie_name; } function show() { print $this->name; } } $film = new Movie(“City of God”); $film->show();
- 15. Getting Help PHP Manual(CHM) Install KCHM to view it.
- 16. Functions String Functions strtolower() / strtoupper() str_replace() strpos() Array Functions array() count() array_push() array_splice() ...
- 17. Database MySQL must be installed and running. Need Information about... server(usually 'localhost') username password database
- 18. Connection mysql_connect('localhost', 'root', 'password'); mysql_select_db('database_name'); Use a database abstraction layer. $db = new Sql(“localhost”, 'root', 'password', 'database_name');
- 19. Executing Queries $sql_handle = mysql_query(“SELECT id,name FROM users WHERE status='1'”) or die(mysql_error()); $result = mysql_fetch_assoc($sql_handle); print $result['name'];
- 20. Fetching Result while($result = mysql_fetch_assoc($sql_handle)) { print $result['name']; } Use Database Abstraction layer!
- 21. PHP and the Web Embedding PHP... <strong><?php print hello($name) ?></strong>
- 22. Form Submission <form action=”action.php” method=”post”> Age: <input type=”text” name=”age” /> <input type=”submit” name=”action” value=”Save” /> </form>
- 23. action.php if($_POST['action'] == 'Save') { print $_POST['age']; }
- 24. Frameworks Zend CodeIgnite CakePHP Symphony And more..
- 25. Free Software CMS Tools WordPress Drupal Joomla/Mambo Forum phpBB BbPress Shopping Cart Wiki
- 26. Credits Getting Help: http://www.flickr.com/photos/doctorow/2496308570/ MySql: http://www.flickr.com/photos/johnniewalker/359440369/ Framework Image : http://www.sxc.hu/photo/916787 Free Software: http://www.flickr.com/photos/marcomolinari_it/2474783234/