"首选", url => $url )); die(); } $res = db__getData($conn, "video", "url", $url); $arr = Array(); array_push($arr, array( name => "首选", url => $url )); for($i = 1; $i <= 3; $i ++){ if($res[0]["url".$i] !== ""){ array_push($arr, array( name => "备选".$i, url => $res[0]["url".$i] )); } } echo json_encode($arr);