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session_register
(PHP 4, PHP 5 < 5.4.0)
session_register — Register one or more global variables with the current session
Description
session_register() accepts a variable number of arguments, any of which can be either a string holding the name of a variable or an array consisting of variable names or other arrays. For each name, session_register() registers the global variable with that name in the current session.
You can also create a session variable by simply setting the appropriate member of the $_SESSION array.
<?php
// Use of session_register() is deprecated
$barney = "A big purple dinosaur.";
session_register("barney");
// Use of $_SESSION is preferred
$_SESSION["zim"] = "An invader from another planet.";
?>
If session_start() was not called before this function is called, an implicit call to session_start() with no parameters will be made. $_SESSION does not mimic this behavior and requires session_start() before use.
This function has been DEPRECATED as of PHP 5.3.0 and REMOVED as of PHP 5.4.0.
Parameters
-
name -
A string holding the name of a variable or an array consisting of variable names or other arrays.
-
... -
Notes
If you want your script to work regardless of register_globals, you need to instead use the $_SESSION array as $_SESSION entries are automatically registered. If your script uses session_register(), it will not work in environments where the PHP directive register_globals is disabled.
Note: register_globals: important note
As of PHP 4.2.0, the default value for the PHP directive register_globals is off. The PHP community discourages developers from relying on this directive, and encourages the use of other means, such as the superglobals.
This registers a global variable. If you want to register a session variable from within a function, you need to make sure to make it global using the global keyword or the $GLOBALS[] array, or use the special session arrays as noted below.
If you are using $_SESSION, do not use session_register(), session_is_registered(), and session_unregister().
Note:
It is currently impossible to register resource variables in a session. For example, you cannot create a connection to a database and store the connection id as a session variable and expect the connection to still be valid the next time the session is restored. PHP functions that return a resource are identified by having a return type of resource in their function definition. A list of functions that return resources are available in the resource types appendix.
If $_SESSION is used, assign values to $_SESSION. For example: $_SESSION['var'] = 'ABC';
See Also
- session_is_registered() - Find out whether a global variable is registered in a session
- session_unregister() - Unregister a global variable from the current session
- $_SESSION
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.session-register.html
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References
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