php获取远程文件内容与大小的函数代码

来源：互联网发布：快递软件是什么编辑：程序博客网时间：2024/05/21 15:07

1，PHP 获取远程文件内容的代码：

<? /** 获取远程文件内容 @param $url 文件http地址 */ function fopen_url($url) { if (function_exists('file_get_contents')) { $file_content = @file_get_contents($url); } elseif (ini_get('allow_url_fopen') && ($file = @fopen($url, 'rb'))){ $i = 0; while (!feof($file) && $i++ < 1000) { $file_content .= strtolower(fread($file, 4096)); } fclose($file); } elseif (function_exists('curl_init')) { $curl_handle = curl_init(); curl_setopt($curl_handle, CURLOPT_URL, $url); curl_setopt($curl_handle, CURLOPT_CONNECTTIMEOUT,2); curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER,1); curl_setopt($curl_handle, CURLOPT_FAILONERROR,1); curl_setopt($curl_handle, CURLOPT_USERAGENT, 'Trackback Spam Check'); //引用垃圾邮件检查 $file_content = curl_exec($curl_handle); curl_close($curl_handle); } else { $file_content = ''; } return $file_content; } ?>

2，获取远程文件大小的php函数

<?php /*** 获取远程文件大小* edit by www.jbxue.com*/function getFileSize($url){ $url = parse_url($url); if($fp = @fsockopen($url['host'],empty($url['port'])?80:$url['port'],$error)){ fputs($fp,"GET ".(empty($url['path'])?'/':$url['path'])." HTTP/1.1\r\n"); fputs($fp,"Host:$url[host]\r\n\r\n"); while(!feof($fp)){ $tmp = fgets($fp); if(trim($tmp) == ''){ break; }else if(preg_match('/Content-Length:(.*)/si',$tmp,$arr)){ return trim($arr[1]); } } return null; }else{ return null; } } //调用方法echo getFileSize("http://www.jbxue.com/images/logo.gif") ?>