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Editorial Team
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Asked: 2026-05-22T23:21:07+00:00

Please have look on the following code: $_SESSION[process_y] = new Process(); $process_y = $_SESSION[process_y];

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Please have look on the following code:

$_SESSION["process_y"] = new Process();
$process_y = $_SESSION["process_y"];
$process_y->name = "John";
$process_y = $_SESSION["process_y"];
echo " name is ".$process_y->name;
// Outputs "name is John"

I fetch an object from a SESSION variable. Then I modify a member of this object, but never saved it back to session. For some reason I’m not aware of, the modified object gets saved in the session like if the fetched object would be a “pointer”.

I couldn’t find any reference explaining this behaviour in php documentation.

NOTE: register_globals is OFF.

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1 Answer

  1. Editorial Team

    That behavior isn’t undocumented and it has nothing to do with the global _SESSION-Array. In some way you are right: It’s a pointer. Check the manual for full explanation: http://www.php.net/manual/en/language.oop5.references.php

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