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<?php
namespace QuickBooksOnline\API\Core\HttpClients;
use QuickBooksOnline\API\Exception\SdkException;
/**
* Class BaseCurl
*
* A Http Client using PHP cURL extension to send HTTP/HTTPS request to QuickBooks Online
* @package QuickBooksOnline
*
*/
class BaseCurl{
/* The cURL extension of PHP */
private $curl = null;
/* constructor of BaseCurl */
public function __construct(){
$this->init();
}
/**
* Intialize a new PHP cURL extension instance for handling HTTP/HTTPS request
*/
public function init(){
if (!extension_loaded('curl')) {
throw new SdkException('The PHP exention curl must be installed to use this PDK.');
}
$this->curl = curl_init();
}
/**
* Check if cURL instance is set or Not
* @return True or False
*/
public function isCurlSet(){
if(!isset($this->curl) || $this->curl === 0) return false;
return true;
}
/**
* set options for curl
* @param String $k The key
* @param String $v The value
*/
public function setupOption($k, $v){
if($this->isCurlSet()){
curl_setopt($this->curl, $k, $v);
} else {
throw new SdkException("cURL instance is not set when calling setup Option.");
}
}
/**
* set options for curl by passing an array
* @param array $k The options set for the curl
*/
public function setupCurlOptArray(array $ary){
if($this->isCurlSet()){
curl_setopt_array($this->curl, $ary);
} else {
throw new SdkException("cURL instance is not set when calling setup curl Option from array.");
}
}
/**
* Send the request
* @return mixed <b>TRUE</b> on success or <b>FALSE</b> on failure. However, if the <b>CURLOPT_RETURNTRANSFER</b>
*/
public function execute(){
if($this->isCurlSet()){
return curl_exec($this->curl);
} else {
throw new SdkException("cURL instance is not set when trying to execute it.");
}
}
/**
* retrun the error number
* @return int Error Number during sending cURL request
*/
public function errno(){
if($this->isCurlSet()){
return curl_errno($this->curl);
} else {
throw new SdkException("cURL instance is not set when trying to get errno code from the execution.");
}
}
/**
* retrun the error message
* @return string Error nessage during sending cURL request
*/
public function error(){
if($this->isCurlSet()){
return curl_error($this->curl);
} else {
throw new SdkException("cURL instance is not set when trying to get error from the execution.");
}
}
/**
* Get info from a curl reference from the type
* Mainly used after execute()
* use $type=CURLINFO_HEADER_OUT for header, and $type=CURLINFO_HTTP_CODE for http_code
* @param String The information you want to retrieve
* @return mixed
*/
public function getInfo($type)
{
if($this->isCurlSet()){
return curl_getinfo($this->curl, $type);
}else {
throw new SdkException("cURL instance is not set when trying to get info from the type:" . $type);
}
}
/**
* Close the resource connection to curl
* Remove the pointer after closed
*/
public function close()
{
curl_close($this->curl);
$this->curl = null;
}
}