PHP Cheatsheet - StudyHub

<?php ... ?>

PHP code block

echo

Output one or more strings

$variable

Variable declaration

// or #

Single-line comment

array()

Creates an array

count()

Returns the number of elements in an array

sort()

Sorts an array in ascending order

array_push()

Inserts one or more elements to the end of an array

$_GET

Collects data sent in the URL

$_POST

Collects data from an HTML form

$_SESSION

Variables available to all pages in one session

$_SERVER

Information about headers, paths, and script locations