PHP Statements
Part of the PHP, MySQL, JavaScript & HTML5 All-in-One For Dummies Cheat Sheet
PHP is a scripting language designed specifically for use on the web. It has features to aid you in programming the tasks needed to develop dynamic web applications. This table provides a brief overview of some of the statements you'll use frequently:
| Statement | Description |
|---|---|
| array ( "key" => "value", . . . ); | Casts a key and value as an array. |
| die("message"); | Stops processing and displays the message. |
| do { block } while (condition); | Performs an operation once and then while a condition is still true. |
| echo item; | Displays item. |
| for (startingval; endingval;increment) { block } | Begins a loop while startingval is less than endingval. |
| foreach( $array as $key => $value) { block } | Begins a loop through an array. |
| function funcname(value,value,. . .) { block } | Declares a function. |
| header("Location: URL"); | Sends an HTTP header. |
| if (condition) { block } | Begins a conditional block. |
| elseif (condition) { block } | Provides an alternate test in a conditional block. |
| else { block } | Provides a final alternative in a conditional block. |
| session_start(); | Starts or resumes a session. |
| session_destroy(); | Destroys a session (but doesn't necessarily clear it completely.) |
| unset(); | Destroys a variable. |
| while (condition) { block } | Creates a loop while a condition is met. |
