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<?php $students=array( "name"=>array("akash","jag", "rahul"), "id"=>array(01,02,03), "age"=>array(22,22,22), ); /*print_r($students); unset($students["name"][0]); print_r($students); */ //print_r(array_values($students)); print_r(array_key($students));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function array_key() in /in/4S76c:12 Stack trace: #0 {main} thrown in /in/4S76c on line 12
Process exited with code 255.

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