array_merge函数解释键名相同且必须是字符 $a = array("w"=>1,1,2,3,4); $b = array("w"=>2,1,2,3,5); $a = array_merge($a,$b); var_dump($a); 这样写被不被认为是字符,且还会在后面添加 $a = array("1"=>1,1,2,3,4); $b = array("1"=>2,1,2,3,52018-05-24浏览 3702