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<?php $mainArray = array( 0 =>array( "key1" => array(7,4,5), 'key2' => array('cc','aa') ) ); foreach($mainArray as &$secondArray){ array_multisort($secondArray[$key]); } var_dump($mainArray); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $key in /in/IK5d7 on line 10 Fatal error: Uncaught TypeError: array_multisort(): Argument #1 ($array) must be an array or a sort flag in /in/IK5d7:10 Stack trace: #0 /in/IK5d7(10): array_multisort(NULL) #1 {main} thrown in /in/IK5d7 on line 10
Process exited with code 255.

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