protected function curl($url)
    {
        // create curl resource
        if ($this->persistentConnect) {
            if (!is_resource(static::$connection)) {
                static::$connection = curl_init();
            }
            $ch = static::$connection;
        } else {
            $ch = curl_init();
        }

        // set url
        curl_setopt($ch, CURLOPT_URL, $url);
        // return the transfer as a string
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        // disable SSL verifying
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        
        if ($this->IPv6Disabled) {
            curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
        }

        // $output contains the output string
        $result = curl_exec($ch);

        if (!$result) {
            $errno = curl_errno($ch);
            $error = curl_error($ch);
        }

        if (!$this->persistentConnect) {
            // close curl resource to free up system resources
            curl_close($ch);
        }

        if (isset($errno) && isset($error)) {
            throw new \Exception($error, $errno);
        }

        return $result;
    }
protected function curl($url)
    {
        // create curl resource
        if ($this->persistentConnect) {
            if (!is_resource(static::$connection)) {
                static::$connection = curl_init();
            }
            $ch = static::$connection;
        } else {
            $ch = curl_init();
        }

        // set url
        curl_setopt($ch, CURLOPT_URL, $url);
        // return the transfer as a string
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        // disable SSL verifying
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        
        if ($this->IPv6Disabled) {
            curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
        }

        // $output contains the output string
        $result = curl_exec($ch);

        if (!$result) {
            $errno = curl_errno($ch);
            $error = curl_error($ch);
        }

        if (!$this->persistentConnect) {
            // close curl resource to free up system resources
            curl_close($ch);
        }

        if (isset($errno) && isset($error)) {
            throw new \Exception($error, $errno);
        }

        return $result;
    }
protected function curl ( $ url ) { // create curl resource if ( $ this -> persistentConnect ) { if ( ! is_resource ( static :: $ connection ) ) { static :: $ connection = curl_init ( ) ; } $ ch = static :: $ connection ; } else { $ ch = curl_init ( ) ; } // set url curl_setopt ( $ ch , CURLOPT_URL , $ url ) ; // return the transfer as a string curl_setopt ( $ ch , CURLOPT_RETURNTRANSFER , TRUE ) ; // disable SSL verifying curl_setopt ( $ ch , CURLOPT_SSL_VERIFYPEER , FALSE ) ; if ( $ this -> IPv6Disabled ) { curl_setopt ( $ ch , CURLOPT_IPRESOLVE , CURL_IPRESOLVE_V4 ) ; } // $output contains the output string $ result = curl_exec ( $ ch ) ; if ( ! $ result ) { $ errno = curl_errno ( $ ch ) ; $ error = curl_error ( $ ch ) ; } if ( ! $ this -> persistentConnect ) { // close curl resource to free up system resources curl_close ( $ ch ) ; } if ( isset ( $ errno ) && isset ( $ error ) ) { throw new \ Exception ( $ error , $ errno ) ; } return $ result ; }
Make the curl request to specified url

@param string $url The url for curl() function

@return mixed The result of curl_exec() function

@throws \Exception
Make the curl request to specified url