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<?php $arr = [ ['user_id' => 1234], ['user_id' => 5678] ]; $arrId = array_column($arr,null,'user_id'); unset($arrId[1234]); $numArr = array_values($arrId); var_export($numArr);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 'user_id' => 5678, ), )

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