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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($students["name"]); print_r($students);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Array ( [name] => Array ( [0] => akash [1] => jag [2] => rahul ) [id] => Array ( [0] => 1 [1] => 2 [2] => 3 ) [age] => Array ( [0] => 22 [1] => 22 [2] => 22 ) ) Array ( [id] => Array ( [0] => 1 [1] => 2 [2] => 3 ) [age] => Array ( [0] => 22 [1] => 22 [2] => 22 ) )

preferences:
262.9 ms | 406 KiB | 396 Q