Code in PHP to detect whether a geographical IP address is available_PHP tutorial

Copy code The code is as follows:

/******************************************
*
* Function name: curl_string ($url,$proxy)
* Function: Detect proxy IP address
* Author: Li Feilin
* Date: 2011-11-09
*
**** ****************************************/
function curl_string ($url,$proxy)
{
$user_agent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5 FirePHP/0.2.1";
$ch = curl_init();
curl_setopt ($ch, CURLOPT_PROXY, $proxy);
curl_setopt ($ch, CURLOPT_URL, $url);//Set the IP to be accessed
curl_setopt ($ch, CURLOPT_USERAGENT, $user_agent);//Simulate the browser used by the user
@curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1); //Use automatic jump
curl_setopt ($ch, CURLOPT_TIMEOUT, 120); //Set Timeout
curl_setopt ( $ch, CURLOPT_AUTOREFERER, 1 ); // Automatically set Referer

curl_setopt ($ch, CURLOPT_COOKIEJAR, 'c:cookie.txt');
curl_setopt ($ch, CURLOPT_HEADER, 1);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt ($ch, CURLOPT_TIMEOUT, 10);
$result = curl_exec($ch);
// Check if any error occured
if( $result === false)
{
error_log(date("H:i:s") . ' Curl Failure: ' . curl_error($ch) ." -- ". $proxy."n", 3, MYMEDIA.'/log/'.date('Y-m-d').'_Err.log');
}else{
error_log(date("H:i:s") . ' Curl success: ' . $proxy."n", 3, MYMEDIA.'/log/'.date('Y-m-d' ).'_OK.log');
}
curl_close($ch);
return $result;
}

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