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PHP Magic Constants
PHP Predefined Constants
PHP has nine predefined constants that change value depending on where...
PHP Global Variables - Superglobals
Superglobals were introduced in PHP 4.1.0, and are built-in variables that are always available...
PHP Update Array Items
Update Array Item
To update an existing array item, you can refer to the index number for...
PHP Break
The break statement can be used to jump out of different kind of loops.
Break in For...
PHP - $_SERVER
$_SERVER
$_SERVER is a PHP super global variable which holds information about headers,...