#46461 [Bgs]: After a array key is referenced in a class variable, the array can't be copied.

ID: 46461 User updated by: user at wanted dot email dot removed Reported By: user at wanted dot email dot removed Status: Bogus Bug Type: Arrays related Operating System: linux, centos 5.0 PHP Version: 5.2.3 New Comment: Um how is this "bogus"? Elaborate? Previous Comments: ------------------------------------------------------------------------ [2008-11-02 01:09:46] jani@php.net This is in so many ways bogus.. ------------------------------------------------------------------------ [2008-11-01 22:38:43] user at wanted dot email dot removed Description: ------------ If I make an array, (NOT a class, an array with strings in it), and then one of the keys of that array is referenced by a class instance's member variable, then that array key/value can no longer be copied. See the code, it's small. We have php 5.2.3. No, sorry, we can't upgrade to check if it's been fixed. Try running the code, it's small. Your form did not provide me the option of saying so. (Which I think is unreasonable.) Reproduce code: --------------- class c { private $ref; public function setref(&$r) { $this->ref = &$r; } } $ar = array('a'=>'b'); $c = new c(); $c->setref( $ar['a']); $copy = $ar; $copy['a'] = 'x'; print_r($ar); /* This will print: Array ( [a] => x ) (Which it shouldn't.) As a demonstration, try commenting out the line $c->setref( $ar['a']); You'll get a different result. (Which you shouldn't.) */ Expected result: ---------------- Array ( [a] => b ) Notice that the line $copy = $ar; is making a copy, not a reference. Actual result: -------------- This will print: Array ( [a] => x ) (Which it shouldn't.) As a demonstration, try commenting out the line $c->setref( $ar['a']); You'll get a different result. (Which you shouldn't.) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=46461&edit=1