function curl($url, $method = 'get', $header = null, $postdata = null, $timeout = 60)
	{
		$s = curl_init();
		// initialize curl handler
 
		curl_setopt($s,CURLOPT_URL, $url);
		//set option  URL of the location
		if ($header)
			curl_setopt($s,CURLOPT_HTTPHEADER, $header);
		//set headers if presents
		curl_setopt($s,CURLOPT_TIMEOUT, $timeout);
		//time out of the curl handler
		curl_setopt($s,CURLOPT_CONNECTTIMEOUT, $timeout);
		//time out of the curl socket connection closing
		curl_setopt($s,CURLOPT_MAXREDIRS, 3);
		//set maximum URL redirections to 3
		curl_setopt($s,CURLOPT_RETURNTRANSFER, true);
		// set option curl to return as string ,don't output directly
		curl_setopt($s,CURLOPT_FOLLOWLOCATION, 1);
		curl_setopt($s,CURLOPT_COOKIEJAR, 'cookie.txt');
        curl_setopt($s,CURLOPT_COOKIEFILE, 'cookie.txt');
		//set a cookie text file, make sure it is writable chmod 777 permission to cookie.txt
 
		if(strtolower($method) == 'post')
		{
			curl_setopt($s,CURLOPT_POST, true);
			//set curl option to post method
			curl_setopt($s,CURLOPT_POSTFIELDS, $postdata);
			//if post data present send them.
		}
		else if(strtolower($method) == 'delete')
		{
			curl_setopt($s,CURLOPT_CUSTOMREQUEST, 'DELETE');
			//file transfer time delete
		}
		else if(strtolower($method) == 'put')
		{
			curl_setopt($s,CURLOPT_CUSTOMREQUEST, 'PUT');
			curl_setopt($s,CURLOPT_POSTFIELDS, $postdata);
			//file transfer to post ,put method and set data
		}
 
		curl_setopt($s,CURLOPT_HEADER, 0);
		// curl send header
		curl_setopt($s,CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1');
		//proxy as Mozilla browser
		curl_setopt($s, CURLOPT_SSL_VERIFYPEER, false);
		// don't need to SSL verify ,if present it need openSSL PHP extension
 
		$html = curl_exec($s);
		//run handler
 
		$status = curl_getinfo($s, CURLINFO_HTTP_CODE);
		// get the response status
 
		curl_close($s);
		//close handler
 
		return $html;
		//return output
}

/*
 * Data which is to submitted to the remote URL
 */
 
 
$post_array = array('fname'=>'mahesh','lname'=>'chari');
 
/*
 * Initialize cURL and connect to the remote URL
 * You will need to replace the URL with your own server's URL
 * or wherever you uploaded this script to.
 */
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://example.com/curlpost_handler.php' );
 
/*
 * Instruct cURL to do a regular HTTP POST
 */
curl_setopt($ch, CURLOPT_POST, TRUE);
 
/*
 * Specify the data which is to be posted
 */
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_array);
 
/*
 * Tell curl_exec to return the response output as a string
 */
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
 
/**
 * Execute the cURL session
 */
$response = curl_exec($ch );
 
/**
 * Close cURL session and file
 */
curl_close($ch );
 
echo $response; // is Welcome Maheshchari.

$firstname=$_POST['fname'];
$lastname=$_POST['lname'];
echo "Welcome ".$firstname.$lastname;

 
/*
*
* Initialize the cURL session
*/
$curl_handler = curl_init();
/*
*
* Set the URL of the page or file to download.
*/
curl_setopt($curl_handler, CURLOPT_URL,
'http://news.google.com/news?hl=en&topic=t&output=rss');
/*
*
* Ask cURL to return the contents in a variable
* instead of simply echoing them to the browser.
*/
curl_setopt($curl_handler, CURLOPT_RETURNTRANSFER, 1);
/*
*
* Execute the cURL session,do some stuff with content
*/
$contents = curl_exec ($curl_handler);
/*
*
* Close cURL session,
*be sure to close the handler as curl stores cookies ,other file data stores on server.
*/
curl_close ($curl_handler);

//This function runs with curl extension that calls or open remote file.
function call_remote_file($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
curl_close($ch);
}
 
function do_somework(){
//This function to run every minutes
@mail('mahesh@gmail.com','cron job','cron runned');
}
set_time_limit(0);
// some web hosts will have only 30 sec max execution time so we keep it unlimited time
// this function only runs if safe mode is off
$url="http://www.maheshchari.com/cronjob.php"; //it is the script that runs exactly every minutes
call_remote_file($url);
do_somework();//in mean time run some work
sleep(60); // wait the script for 60 seconds or every minute
call_remote_file($url); // call this script itself after a minute
// This process continues every minute