Online PHP editor | refs for Z4guS

<?php /** by www.phpddt.com */ $arr = array("a"=>"PHP","b"=>"中国"); echo json_encode($arr); //中文乱码：["PHP","\u4e2d\u56fd"] //json_encode前对变量urlencode即可 foreach ($arr as $k => $v){ $arr[$k] = urlencode($v); } echo urldecode(json_encode($arr)); //{"a":"PHP","b":"中国"} $str=md5('test');echo hexdec($str)%3; print_r( json_decode('[{"item_id": 21,"title": "可口可乐600ml"}]',true)); print_r( json_decode('{"item_id": 21,"title": "可口可乐600ml"}',true)); print_r(array_flip(array_flip(array(1,2,3)))); echo json_encode(array(1,2,3),1);