这是不平凡的，因为您想嵌套，但是应该这样：
function insert_using_keys($arr, $keys, $value){ // we're modifying a copy of $arr, but here // we obtain a reference to it. we move the // reference in order to set the values. $a = &$arr; while( count($keys) > 0 ){ // get next first key $k = array_shift($keys); // if $a isn't an array already, make it one if(!is_array($a)){ $a = array(); } // move the reference deeper $a = &$a[$k]; } $a = $value; // return a copy of $arr with the value set return $arr;}
