php自动采集内容中带有图片地址的远程图片保存到本地

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php自动采集内容中带有图片地址的远程图片保存到本地_PHP教程

Jul 20, 2016 am 11:08 AM

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php自动采集内容中带有图片地址的远程图片保存到本地

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($value,-3,3);
  if(empty($get_file)){
   @sleep(10);
   $get_file = my_file_get_contents($value,30);
   if(empty($get_file)){
    $body = preg_replace("/".addcslashes($value,"/")."/isu", '/notfound.jpg', $body);
    continue;
    }
  }
  if(!empty($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(" return $body;

}

function mkdirs($dir)
{
if(!is_dir($dir)){
  if(!mkdirs(dirname($dir))){
   return false;}
  if(!mkdir($dir,0777)){
   return false;}
}
return true;
}