$url= \"http://api.stackoverflow.com/1.1/search?tagged=php\"; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_RETURNTRAN
Open your php.ini file and check for disable_functions over there. And see whether your curl_init is packed there or not! Here is More information
php.ini
disable_functions
curl_init