Difference between revisions of "Superglobal (PHP)"

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(External links)
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* http://www.phpforkids.com/php/php-forms-predefined-variables-superglobals.php
 
* http://www.phpforkids.com/php/php-forms-predefined-variables-superglobals.php
 
* http://www.imperva.com/docs/hii_php_superglobals_supersized_trouble.pdf
 
* http://www.imperva.com/docs/hii_php_superglobals_supersized_trouble.pdf
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Custom superglobals:
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* http://stackoverflow.com/questions/8413937/custom-super-global-in-php
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* http://stackoverflow.com/questions/18004129/defining-custom-superglobal-array-in-php

Revision as of 04:12, 19 October 2015

In PHP, a superglobal is a built-in variable that always available in all scopes.

Description

Several predefined variables in PHP are "superglobals", which means they are available in all scopes throughout a script.

There is no need to do global $variable; to access them within functions or methods.

These superglobal variables are:

  • $GLOBALS
  • $_SERVER
  • $_GET
  • $_POST
  • $_FILES
  • $_COOKIE
  • $_SESSION
  • $_REQUEST
  • $_ENV

See also

External links

Custom superglobals: