RequestGenerator, a simple PHP class for handling Curl Request.

RequestGenerator.php

<?php

/**
 * Class : RequestGenerator
 * Type : Component
 * @author Nishant Shrivastava <nishant@weboniselab.com>
 */
class RequestGeneratorComponent extends CComponent {

    /**
     * Default options for curl.
     */
    public static $CURL_OPTS = array(
        'CURLOPT_CONNECTTIMEOUT' => 30,
        'CURLOPT_RETURNTRANSFER' => true,
        'CURLOPT_TIMEOUT' => 60,
        'CURLOPT_USERAGENT' => 'request-generator-webonise-1.0',
    );

    function __construct() {
        if (!function_exists('curl_init')) {
            throw new Exception('Application needs the CURL PHP extension.');
        }
        if (!function_exists('json_decode')) {
            throw new Exception('Application needs the JSON PHP extension.');
        }
    }


    /**
     * Make an HTTP request
     *
     * @return API results
     */
    public function request($url, $method = 'GET', $postFields = NULL) {
        $this->http_info = $response = array();
        $curlObj = curl_init();

        /* Curl settings */
        $curlOptions = self::$CURL_OPTS;

        curl_setopt($curlObj, CURLOPT_USERAGENT, $curlOptions['CURLOPT_USERAGENT']);
        curl_setopt($curlObj, CURLOPT_CONNECTTIMEOUT, $curlOptions['CURLOPT_CONNECTTIMEOUT']);
        curl_setopt($curlObj, CURLOPT_TIMEOUT, $curlOptions['CURLOPT_TIMEOUT']);
        curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, $curlOptions['CURLOPT_RETURNTRANSFER']);
        curl_setopt($curlObj, CURLOPT_HEADER, FALSE);

        switch ($method) {
            case 'POST':
                curl_setopt($curlObj, CURLOPT_POST, TRUE);
                if (!empty($postFields)) {
                    curl_setopt($curlObj, CURLOPT_POSTFIELDS, $postFields);
                }
                continue;
            case 'DELETE':
                curl_setopt($curlObj, CURLOPT_CUSTOMREQUEST, 'DELETE');
                if (!empty($postFields)) {
                    $url = "{$url}?{$postFields}";
                }
                continue;
            default:
                continue;
        }

        curl_setopt($curlObj, CURLOPT_URL, $url);

        try {
            $response = curl_exec($curlObj);
            $response = json_decode($response, true);
        } catch (Exception $e) {
            die('Curl Exception [' . $e->getCode() . '] : ' . $e->getMessage());
        }

        /**
         * @internal Capturing http code and http info and merging it into response array
         */
        $response['http_info'] = curl_getinfo($curlObj);

        curl_close($curlObj);

        return $response;
    }

}