Online PHP editor | refs for NsqMu

<?php $array1 =[ ["id"=> "1", "uid"=>'123', "status"=>'0'], ["id"=> "2", "uid"=>'321', "status"=>'1'] ]; $array2 =[ ["uid"=> "123", "name"=>'张三'], ["uid"=> "321", "name"=>'李四'] ]; $array2 = array_column($array2, 'name', 'uid'); foreach($array1 as &$arr) $arr['uid'] = $array2[$arr['uid']]; var_dump($array1); $arr = array( '0'=>array('1','2'), '1'=>array('2','3'), '2'=>array('3','4'), '3'=>array('4','5'), '4'=>array('5','6'), ); echo '<pre>'; $res = array(); array_walk($arr, function($item, $key) use (&$res) {$res = array_merge($res, $item);}); print_r($res);