php采集内容中带有图片地址的远程图片并保存的方法
这篇文章主要介绍了php采集内容中带有图片地址的远程图片并保存的方法,可实现采集并保存远程图片的功能,是非常实用的技巧,需要的朋友可以参考下
本文实例讲述了php采集内容中带有图片地址的远程图片并保存的方法,分享给大家供大家参考。具体实现方法如下:
- function my_file_get_contents($url, $timeout=30) {
- if ( function_exists('curl_init') )
- {
- $ch = curl_init();
- curl_setopt ($ch, curlopt_url, $url);
- curl_setopt ($ch, curlopt_returntransfer, 1);
- curl_setopt ($ch, curlopt_connecttimeout, $timeout);
- $file_contents = curl_exec($ch);
- curl_close($ch);
- }
- else if ( ini_get('allow_url_fopen') == 1 || strtolower(ini_get('allow_url_fopen')) == 'on' )
- {
- $file_contents = @file_get_contents($url);
- }
- else
- {
- $file_contents = '';
- }
- return $file_contents;
- }
- function get_remote($body,$title){
- $img_array = array();
- $img_path = realpath("../../../upfile/news/").'/'.date("y/m/d/"); //采集远程图片保存地址
- //die($img_path);
- $img_rpath='/upfile/news/'.date("y/m/d/"); //设置访问地址
- $body = stripslashes(strtolower($body));
- preg_match_all("/(src|src)=["|'| ]{0,}(http://(.*).(gif|jpg|jpeg|png))/isu",$body,$img_array);
- $img_array = array_unique($img_array[2]);
- foreach ($img_array as $key => $value) {
- $get_file = my_file_get_contents($value,60);
- $filetime = time();
- $filename = date("ymdhis",$filetime).rand(1,999).'.'.substr($value,-3,3);
- if(emptyempty($get_file)){
- @sleep(10);
- $get_file = my_file_get_contents($value,30);
- if(emptyempty($get_file)){
- $body = preg_replace("/".addcslashes($value,"/")."/isu", '/notfound.jpg', $body);
- continue;
- }
- }
- if(!emptyempty($get_file) ){
- if( mkdirs($img_path) )
- {
- $fp = fopen($img_path.$filename,"w");
- if(fwrite($fp,$get_file)){
- $body = preg_replace("/".addcslashes($value,"/")."/isu", $img_rpath.$filename, $body);
- }
- fclose($fp);
- @sleep(6);
- }
- }
- }
- $body =str_replace("<img","<img ",$body);
- return $body;
- }
- function mkdirs($dir)
- {
- if(!is_dir($dir)){
- if(!mkdirs(dirname($dir))){
- return false;}
- if(!mkdir($dir,0777)){
- return false;}
- }
- return true;
- }
- //用法如下:
- $str ='fasfsdafsa<img src=http://filesimg.xxxx.com/2010/03/2010062300391582.jpg />';
- echo get_remote($str,'图片');