php采集内容中带有图片地址的远程图片并保存的方法

  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:

  

复制代码 代码如下:
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;

  }

  

复制代码 代码如下:
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');

  希望本文所述对大家的php程序设计有所帮助。