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<?php $records = array( array( 'id' => 2135, 'first_name' => 'John', 'last_name' => 'Doe' ), array( 'id' => -1, 'first_name' => 'Sally', 'last_name' => 'Smith' ), array( 'id' => -2, 'first_name' => 'Jane', 'last_name' => 'Jones' ), ); $firstNames = array_column($records, null, 'id'); print_r($firstNames);
Output for git.master_jit, git.master, rfc.property-hooks
Array ( [2135] => Array ( [id] => 2135 [first_name] => John [last_name] => Doe ) [-1] => Array ( [id] => -1 [first_name] => Sally [last_name] => Smith ) [-2] => Array ( [id] => -2 [first_name] => Jane [last_name] => Jones ) )

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