Curl Example PHP

curl-example.php

<?php
class CurlTest {

const API_BASE_URL = 'http://example.com/v1/';
protected $apiKey  = 'YOUR API KEY';

protected function _getApiData($route, $method = 'GET', $sendData = array()){
		$method     = strtoupper($method);
        $requestUrl = self::API_BASE_URL.$route;
        $curlObj    = curl_init();
        curl_setopt($curlObj, CURLOPT_URL,$requestUrl);
		if($method == 'GET'){
            curl_setopt($curlObj, CURLOPT_HTTPGET,true);
        }elseif($method == 'POST'){
            curl_setopt($curlObj, CURLOPT_POST, true);
        }elseif ($method == 'PUT'){
            curl_setopt($curlObj, CURLOPT_CUSTOMREQUEST, "PUT");
        }else{
			curl_setopt($curlObj, CURLOPT_CUSTOMREQUEST, $method); 
		}
			
        curl_setopt($curlObj, CURLOPT_CONNECTTIMEOUT, 10);
        curl_setopt($curlObj, CURLOPT_TIMEOUT, 90);

        curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curlObj, CURLOPT_HEADER, 0);
        $headers = array(
            'Trackingmore-Api-Key: ' . $this->apiKey,
            'Content-Type: application/json',
        ); 
        if($sendData){
            $dataString = json_encode($sendData);
            curl_setopt($curlObj, CURLOPT_POSTFIELDS, $dataString);
            $headers[] = 'Content-Length: ' . strlen($dataString);
        }
        curl_setopt($curlObj, CURLOPT_HTTPHEADER, $headers);
        $response = curl_exec($curlObj);
        curl_close($curlObj);
        unset($curlObj); 
        return $response;
    }

}