一維數組索引數組鍵值以鍵名鍵值順序重組爲一個新的一維數組

array("q","w","e","r","t","y");array("q"=>"w","e"=>"r","t"=>"y");function fun($arr){
 	if(!is_array($arr)){
 		return [];
 	}
 	$re =[];


 		for($i=0;$i<count($arr);$i+=2){
 			$re[$arr[$i]] = isset($arr[$i+1])?$arr[$i+1]:'';
 			echo $i;
 		}
 	return $re;
 }var_dump(fun([("q","w","e","r","t","y")]));輸出：（$i）024  （$re）array(3) { ["q"]=> string(1) "w" ["e"]=> string(1) "r" ["t"]=> string(1) "y" }
 var_dump(fun(['1','q','2','a','3','z']));
輸出：（$i）024  （$re）array(3) { [1]=> string(1) "q" [2]=> string(1) "a" [3]=> string(1) "z" }