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php将远程图片保存到本地服务器的实现代码_PHP

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Release: 2016-05-30 08:47:16
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php如何将远程图片本地化,本文分享了实现代码

<&#63;php 
//站点根目录 
$cfg_basedir = dirname(__FILE__); 
//停建目录属性 
$cfg_dir_purview ='0755'; 
 /*Get请求远程内容函数*/ 
 $cookie_file = dirname(__FILE__).'/cookie.txt'; //COOKIE存放地址 
  function pget($url,$ref=false,$head=false){ 
  $curl = curl_init(); // 启动一个CURL会话 
  curl_setopt($curl, CURLOPT_URL, $url); // 要访问的地址       
  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0); // 对认证证书来源的检查 
  curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 1); // 从证书中检查SSL加密算法是否存在 
  curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); // 模拟用户使用的浏览器 
  curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); // 使用自动跳转 
  if($ref){ curl_setopt($curl, CURLOPT_REFERER, $ref);//带来的Referer 
  }else{ 
  curl_setopt($curl, CURLOPT_AUTOREFERER, 1); // 自动设置Referer 
  } 
  curl_setopt($curl, CURLOPT_HTTPGET, 1); // 发送一个常规的Post请求 
  curl_setopt($curl, CURLOPT_COOKIEJAR, $GLOBALS['cookie_file']); // 存放Cookie信息的文件名称 
  curl_setopt($curl, CURLOPT_COOKIEFILE,$GLOBALS ['cookie_file']); // 读取上面所储存的Cookie信息 
  curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 设置超时限制防止死循环 
  curl_setopt($curl, CURLOPT_HEADER, 0); // 显示返回的Header区域内容 
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // 获取的信息以文件流的形式返回 
  $tmpInfo = curl_exec($curl); // 执行操作 
  if (curl_errno($curl)) { 
 echo 'Errno'.curl_error($curl); 
  } 
   if($head){ $data['head']=curl_getinfo($curl);} 
  curl_close($curl); // 关键CURL会话 
  $data['data']=$tmpInfo; 
  return $data; // 返回数据 
} 
 
 
/** 
 * 创建所有目录 
 * 
 * @param   string $truepath 真实地址 
 * @param   string $mmode  模式 
 * @return  bool 
 */ 
if ( ! function_exists('MkdirAll')) 
{ 
  function MkdirAll($truepath) 
  { global $cfg_dir_purview; 
      if(!file_exists($truepath)) 
      { 
        mkdir($truepath, $cfg_dir_purview); 
        chmod($truepath, $cfg_dir_purview); 
        return true; 
      } 
      else 
      { 
        return true; 
      } 
  } 
} 
  /** 
 * 获得文章body里的外部资源 
 * 
 * @access  public 
 * @param   string $body 文档内容 
 * @return  string 
 */ 
function GetCurContent($body) 
{ 
  global $cfg_multi_site,$cfg_basehost,$cfg_basedir,$cfg_image_dir,$arcID,$cuserLogin,$dsql; 
  $cfg_uploaddir = '/c'; 
  $basehost = "http://".$_SERVER["HTTP_HOST"]; 
     
  $img_array = array(); 
  preg_match_all("/src=[\"|'|\s]{0,}(http:\/\/([^>]*)\.(gif|jpg|png))/isU",$body,$img_array); 
   
  $img_array = array_unique($img_array[1]); 
  $imgUrl = $cfg_uploaddir.'/'.date("ymd", time()); 
  $imgPath = $cfg_basedir.$imgUrl; 
  if(!is_dir($imgPath.'/')) 
  { 
    MkdirAll($imgPath, $GLOBALS['cfg_dir_purview']); 
    CloseFtp(); 
  } 
  $milliSecond = date('His',time()); 
  foreach($img_array as $key=>$value) 
  {  
    if(preg_match("#".$basehost."#i", $value)) 
    { 
      continue; 
    } 
    if(preg_match("#".$basehost."#i", $value)) 
    { 
      continue; 
    } 
    if(!preg_match("#^http:\/\/#i", $value)) 
    { 
      continue; 
    } 
    
    $http=pget($value,'$value',true); 
    $itype=($http['head']['content_type']); 
    if(!preg_match("#\.(jpg|gif|png)#i", $itype)) 
    { 
      if($itype=='image/gif') 
      { 
        $itype = ".gif"; 
      } 
      else if($itype=='image/png') 
      { 
        $itype = ".png"; 
      } 
      else 
      { 
        $itype = '.jpg'; 
      } 
    } 
    $milliSecondN = rand(1000,9999).rand(1000,9999); 
    $value = trim($value); 
    $rndFileName = $imgPath.'/'.$milliSecondN.'-'.$key.$itype; 
    $fileurl = $imgUrl.'/'.$milliSecondN.'-'.$key.$itype; 
 
    $tp = fopen($rndFileName, 'wb'); 
    fwrite($tp, $http['data']); 
    fclose($tp); 
     
    if(file_exists($cfg_basedir.$fileurl)) 
    { 
      $info = ''; 
      $imginfos = GetImageSize($rndFileName, $info); 
      $fsize = filesize($rndFileName); 
      $body = str_replace($value, $fileurl, $body); 
  
    } 
  } 
  return $body; 
} 
 
//调用方式 
echo GetCurContent($body); 
Copy after login

以上就是实现远程图片本地化的全部代码,希望对大家的学习有所帮助。

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