$url= \"http://api.stackoverflow.com/1.1/search?tagged=php\"; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_RETURNTRAN
From your php.ini remove those above functions from disable_functions.
disable_functions
How to locate the php.ini file (xampp)
php.ini file is available in xamp folder