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<?php $array = [ ['user_id' => 82, 'ac_type' => 1], ['user_id' => 80, 'ac_type' => 5], ['user_id' => 76, 'ac_type' => 1], ['user_id' => 82, 'ac_type' => 2], ['user_id' => 80, 'ac_type' => 5] ]; foreach ($array as $a) { if (!isset($result[$a['user_id']])) { $result[$a['user_id']] = $a; // only store if first occurrence of user_id } } var_export(array_values($result)); // re-index and print
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 'user_id' => 82, 'ac_type' => 1, ), 1 => array ( 'user_id' => 80, 'ac_type' => 5, ), 2 => array ( 'user_id' => 76, 'ac_type' => 1, ), )

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