~~~ function http_status($url) {//判断状态码 $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_NOBODY, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_TIMEOUT, 5); curl_exec($ch); $status = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); /*return ($status == 404) ? 1 : 0;*/ return $status; } 如果存在的话输出的是200，如果不存在的话输出的是404 ~~~