PHP下载远程文件到本地存储的方法_PHP教程

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function GrabImage($url,$filename="") {

if($url=="") return false;

if($filename=="") {

$ext=strrchr($url,".");

if($ext!=".gif" && $ext!=".jpg") return false;

$filename=date("dMYHis").$ext;

}

ob_start();

readfile($url);

$img = ob_get_contents();

ob_end_clean();

$size = strlen($img);

$fp2=@fopen($filename, "a");

fwrite($fp2,$img);

fclose($fp2);

return $filename;

}

function gethttpimage($url){

if(!empty($url)){

$filename=uniqid().strrchr($url,".");

echo $filename;

$get_file=@file_get_contents($url);

if($get_file){

$fp=@fopen($filename,"w");

@fwrite($fp,$get_file);

@fclose($fp);

}

return $imgUrl;

}else{

return false;

}

}

//$img=GrabImage("http://www.jb51.net/images/logo.gif","");

$img=gethttpimage("http://www.jb51.net/images/logo.gif","");

if($img) echo '

<img  src="'.%24img.'" alt="PHP下载远程文件到本地存储的方法_PHP教程" >

else echo "false";

?>