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<?php // A reference can be taken to a key that doesn’t exist within an undefined variable (which becomes an array). Using a non-existent array // normally issues a notice, but this does not. $ref = &$array[$key]; var_dump($array,$ref);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $key in /in/9gn1c on line 4 array(1) { [""]=> &NULL } NULL

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