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(PHP 4, PHP 5)
session_is_registered — Überprüft, ob eine globale Variable in einer Session registriert ist
Überprüft, ob eine globale Variable in einer Session registriert ist.
Diese Funktion ist seit PHP 5.3.0 DEPRECATED (veraltet). Sich auf diese Funktion zu verlassen ist in keiner Weise empfehlenswert.
Der Variablenname
Falls in der aktuellen Session eine globale Variable mit dem Namen name registriert ist, gibt session_is_registered() TRUE zurück, andernfalls FALSE.
Hinweis:
Benutzen Sie bei Verwendung von $_SESSION (oder $HTTP_SESSION_VARS bei PHP 4.0.6 oder niedriger) isset() um zu prüfen, ob eine Variable in $_SESSION registriert ist.
Wenn Sie $_SESSION (oder $HTTP_SESSION_VARS) verwenden, sollten Sie nicht session_register(), session_is_registered() und session_unregister() verwenden.
session_register() function is generating warnings. Therefore, instead of using:
<?php
$test = 'Here';
session_register('test');
?>
It is better :
<?php
$_SESSION['test'] = 'Here';
?>
Just to elaborate for those who may be having some problems.
If you're using a newer version of PHP that comes with the register globals directive set to "off", you should heed the caution at the top of these notes. It's easier anyway.
Instead of using session_register(...) , simply use somethig like:
<?
//must always start the session first
session_start();
//in place of session register(..) use...like someone said above
$_SESSION['VARNAME'] = $something // or "something";
/* then on the same page or subsequent pages where you want check for the session use something like....
and on another page where the session hasn't been started you have to call session_start(); first, if the session has already been started you don't need to call it again */
session_start();
//instead of session_is_registered();
if(isset($_SESSION['VARNAME']))
{
print("What you want if the session var is set");
}
else
{
print("What you want if the sessions variable is not set");
}
?>
I hope this helps someone! If you want to learn more about $_SESSION and/or it's related "superglobals" try
http://www.php.net/manual/en/printwn/language.variables.predefined.php
good road!
When using PHP 4.2.0 even on the same page where you registered the variable with:
session_register("someVar");
if you try to see if the variable is set and do not assign it a value before, the function used in the previous comment will give the same output.
This may show that the variable is declared and will not be set until some value is give assign to it.
I think that this way will give the option to register all the variables used for sure on the process on the first page and using them as the time comes.
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