如何用PHP查询远程文件的具体大小？
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本文共计150个文字，预计阅读时间需要1分钟。
python/** * 获取远程文件大小的函数 * @param url 文件URL * @param user 用户名 * @param pw 密码 * @return 文件大小 */function remote_filesize($url, $user=, $pw=) { ob_start(); $ch=curl_init($url); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_NOBODY, 1); if (!empty($user) && !empty($pw)) { $headers=array('Aut'); }}
// 获取远程文件的大小 function remote_filesize($url, $user = "", $pw = "") { ob_start(); $ch = curl_init($url); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_NOBODY, 1); if(!empty($user) && !empty($pw)) { $headers = array('Authorization: Basic ' . base64_encode("$user:$pw")); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); } $ok = curl_exec($ch); curl_close($ch); $head = ob_get_contents(); ob_end_clean(); $regex = '/Content-Length:\s([0-9].+?)\s/'; $count = preg_match($regex, $head, $matches); return isset($matches[1]) ? $matches[1] . " 字节" : "unknown"; } // 实例测试 echo remote_filesize("img105.job1001.com/upload/adminnew/2014-10-14/1413272802-SEILFHG.jpg");
本文共计150个文字，预计阅读时间需要1分钟。
python/** * 获取远程文件大小的函数 * @param url 文件URL * @param user 用户名 * @param pw 密码 * @return 文件大小 */function remote_filesize($url, $user=, $pw=) { ob_start(); $ch=curl_init($url); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_NOBODY, 1); if (!empty($user) && !empty($pw)) { $headers=array('Aut'); }}
// 获取远程文件的大小 function remote_filesize($url, $user = "", $pw = "") { ob_start(); $ch = curl_init($url); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_NOBODY, 1); if(!empty($user) && !empty($pw)) { $headers = array('Authorization: Basic ' . base64_encode("$user:$pw")); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); } $ok = curl_exec($ch); curl_close($ch); $head = ob_get_contents(); ob_end_clean(); $regex = '/Content-Length:\s([0-9].+?)\s/'; $count = preg_match($regex, $head, $matches); return isset($matches[1]) ? $matches[1] . " 字节" : "unknown"; } // 实例测试 echo remote_filesize("img105.job1001.com/upload/adminnew/2014-10-14/1413272802-SEILFHG.jpg");