Login website with cURL

<?php
/* Login website with cURL - Demo by Juno_okyo */

// cURL handle
$ch = curl_init();

// Set Options
curl_setopt_array($ch, array(
    CURLOPT_URL => 'http://www.example.com/login.php',
    CURLOPT_USERAGENT => 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36',
    CURLOPT_REFERER => 'http://www.example.com/',
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_FOLLOWLOCATION => 1,
    CURLOPT_COOKIEJAR => 'cookies.txt',
    CURLOPT_COOKIEFILE => 'cookies.txt',
    CURLOPT_POST => 1,
    CURLOPT_POSTFIELDS => 'username=juno_okyo&password=12345@7'
));

// Send request
$response = curl_exec($ch);

// Close handle
curl_close($ch);

// Check login
if (strpos($response, 'Welcome back!') !== FALSE)
{
    echo 'Login success!';
}
else
{
    echo 'Login failed!';
}

/* EOF */