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<?php $users = json_decode('[{"first_name":"Rebecca"},{"first_name":"amy"},{"first_name":"Amy"},{"first_name":"stacy"}]', true); $firstNames = array_column($users, 'first_name'); array_multisort(array_map('strtolower', $firstNames), $firstNames, $users); var_export($users);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 'first_name' => 'Amy', ), 1 => array ( 'first_name' => 'amy', ), 2 => array ( 'first_name' => 'Rebecca', ), 3 => array ( 'first_name' => 'stacy', ), )

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