PHP100 essence: PHP generates web page snapshot_PHP tutorial

$url = www.baidu.com; //Catch Baidu
echo snapshot($url); //The output result is the image address
echo snapshot($url, ./baidu.png); //Save the image to local baidu.png, output content image size

/**
* Generate web page snapshot
* Fr bkJia.com Forum xiaokai
* @param string $site Target address
* @param string $path Save address, if it is empty, it will not be saved
* @param integer $dealy delay
* @return mixed Return
according to parameters ​*/
function snapshot($site, $path = , $dealy = 0)
{
$url = http://ppt.cc/yo2/catch.php;
$query = url= . $site . &delay= . $dealy . &rnd= . mt_rand(1, 9);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER[HTTP_USER_AGENT]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = curl_exec($ch);
curl_close($ch);

If (strlen($data) != 32) {
exit(invalid URL);
}

$file = $data{0} . / . $data{1} . / . $data{2} . /;
$file = http://cache.ppt.cc/ . $file . src_ . $data . .png;

If (!empty($path)) {
          $data = file_get_contents($file);
          return file_put_contents($path, $data);
}
Return $file;
}