documentation:php

First Web Page with PHP
Basic Commands
links

~~TOC~~

Lab46 Tutorials

PHP

Hyper Text Preprocessor

PHP (Personal Home Page) is a scripting language used to produce dynamic web pages. It is put into html pages to give them more functionality. There is no compiling necessary, the web server interprets the code at run time.

First Web Page with PHP

<html>
    <head>
        <title>My page with PHP</title>
    </head>
    <body>
    <?php
        echo "This is a hello world page!"
    ?>
    </body>
</html>

Basic Commands

Variables and Comments

$ - variables (do not need to be declared)
/ / - comments

Common Functions

if () - decision
else () - alternate to if
eval () - evaluate text string
Array () - creat an array
time () - outputs time
date () - formats time output
echo () - output to page
include () - include external files
system () - call the system to execute a command
shell_exec - call the system to execute a command

Regular Expressions

/ - escape character
^ - start of string
$ - end of string
. - and single character
a? - 0 or one of a
a* - 0 or more of a
a+ - 1 or more of a
(y|z) - y or z
(…) - group selection
[xyz] - range
[^xyz] - ont in range

Table of Contents

First Web Page with PHP

Basic Commands

Variables and Comments

Common Functions

Regular Expressions

links