PHP CURL simulates the code for the GET and POST functions

<?php 
function vcurl($url, $post = '', $cookie = '', $cookiejar = '', $referer = ''){ 
$tmpInfo = ''; 
$cookiepath = getcwd().'./'.$cookiejar; 
$curl = curl_init(); 
curl_setopt($curl, CURLOPT_URL, $url); 
curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); 
if($referer) { 
curl_setopt($curl, CURLOPT_REFERER, $referer); 
} else { 
curl_setopt($curl, CURLOPT_AUTOREFERER, 1); 
} 
if($post) { 
curl_setopt($curl, CURLOPT_POST, 1); 
curl_setopt($curl, CURLOPT_POSTFIELDS, $post); 
} 
if($cookie) { 
curl_setopt($curl, CURLOPT_COOKIE, $cookie); 
} 
if($cookiejar) { 
curl_setopt($curl, CURLOPT_COOKIEJAR, $cookiepath); 
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookiepath); 
} 
//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); 
curl_setopt($curl, CURLOPT_TIMEOUT, 100); 
curl_setopt($curl, CURLOPT_HEADER, 0); 
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); 
$tmpInfo = curl_exec($curl); 
if (curl_errno($curl)) { 
echo '<pre><b> error :</b><br />'.curl_error($curl); 
} 
curl_close($curl); 
return $tmpInfo; 
} 
?>