Basic Authentication in post request

basic_auth_request.php

function getAuthString(){
	return base64_encode($username.':'.$password);
}
function sendRequest($params){
	$headers = array(
		'Authorization: Basic '.getAuthString(),
		'Content-Type: application/json',
	);


	$ch = curl_init();

	$url = getURL();
	curl_setopt($ch, CURLOPT_URL,            $url );
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
	curl_setopt($ch, CURLOPT_POST,           1 );
	curl_setopt($ch, CURLOPT_POSTFIELDS,     json_encode($params) ); 
	curl_setopt($ch, CURLOPT_HTTPHEADER,     $headers); 

	$result=curl_exec ($ch);

}