PHP实现远程下载文件到本地
经常写采集器发布接口需要使用到远程附件的功能，所以自己写了一个PHP远程下载文件到本地的函数，一般情况下已经够用了，如果服务器支持CURL函数，程序则会优先选择CURL，有需要的小伙伴可以参考下。
代码很简单就不多废话了，直接奉上：
- <?php
- echo httpcopy("http://www.baidu.com/img/baidu_sylogo1.gif");
- function httpcopy($url, $file="", $timeout=60) {
- $file = emptyempty($file) ? pathinfo($url,PATHINFO_BASENAME) : $file;
- $dir = pathinfo($file,PATHINFO_DIRNAME);
- !is_dir($dir) && @mkdir($dir,0755,true);
- $url = str_replace(" ","%20",$url);
- if(function_exists('curl_init')) {
- $ch = curl_init();
- curl_setopt($ch, CURLOPT_URL, $url);
- curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
- $temp = curl_exec($ch);
- if(@file_put_contents($file, $temp) && !curl_error($ch)) {
- return $file;
- } else {
- return false;
- }
- } else {
- $opts = array(
- "http"=>array(
- "method"=>"GET",
- "header"=>"",
- "timeout"=>$timeout)
- );
- $context = stream_context_create($opts);
- if(@copy($url, $file, $context)) {
- //$http_response_header
- return $file;
- } else {
- return false;
- }
- }
- }
- ?>
再来个远程下载文件到服务器
- <form method="post">
- <input name="url" size="50" />
- <input name="submit" type="submit" />
- </form>
- < ?php
- // maximum execution time in seconds
- set_time_limit (24 * 60 * 60);
- if (!isset($_POST['submit'])) die();
- // folder to save downloaded files to. must end with slash
- $destination_folder = 'temp/';
- $url = $_POST['url'];
- $newfname = $destination_folder . basename($url);
- $file = fopen ($url, "rb");
- if ($file) {
- $newf = fopen ($newfname, "wb");
- if ($newf)
- while(!feof($file)) {
- fwrite($newf, fread($file, 1024 * 8 ), 1024 * 8 );
- }
- }
- if ($file) {
- fclose($file);
- }
- if ($newf) {
- fclose($newf);
- }
- ?>