php实用获取远程图片的通用方法

1. function auto_save_image($body){
2. $img_array = explode('&',$body);
3. /*$img_array = array();
4. preg_match_all("/(src)=[\"|\'| ]{0,}(http:\/\/(.*)\.(gif|jpg|jpeg|bmp|png))[\"|\'| ]{0,}/isU", $body, $img_array);
5. $img_array = array_unique($img_array[2]);*/ //也可以自动匹配
6. set_time_limit(0);
7. $imgPath = "uploads/allimg/".date("Ymd")."/";
8. $milliSecond = strftime("%H%M%S",time());
9. if(!is_dir($imgPath)) @mkdir($imgPath,0777);
10. foreach($img_array as $key =>$value)
11. {
12. $value = trim($value);
13. $get_file = @file_get_contents($value);
14. $rndFileName = $imgPath."/".$milliSecond.$key.".".substr($value,-3,3);
15. if($get_file)
16. {
17. $fp = @fopen($rndFileName,"w");
18. @fwrite($fp,$get_file);
19. @fclose($fp);
20. }
21. $body = @ereg_replace($value, $rndFileName, $body);
22. }
23. return $body;
24. }

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