call api function using curl in php - php

Question

I have a simple Rest Based API function how can i call this function by send value as a parameter
this is the code
public function CheckIfUserExist($id)
{
$sql = mysql_query("SELECT * FROM `".APICONFIG::DB."`.`".CLIENTINFO::TABLE_CLIENT."`
WHERE ".
CLIENTINFO::CLIENT_ID." = '".$id."'",
$this->db);
$num_rows = mysql_num_rows($sql);
if($num_rows > 0 )
return true;
else
return false;
}
this is what i am trying
$url = $domain.'db/register/RegisterUserAPI/CheckIfUserExist';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
how can i call this function and send a value as a parameter

Answer 1

put your function in a file and call it by receiving parameter
call_fun.php
if(isset($_REQUEST['id']))
{
$id = $_REQUEST['id'];
if(CheckIfUserExist($id))
{
echo "Exists";
}
else
{
echo "Not Exists";
}
}
public function CheckIfUserExist($id)
{
$sql = mysql_query("SELECT * FROM `".APICONFIG::DB."`.`".CLIENTINFO::TABLE_CLIENT."`
WHERE ".
CLIENTINFO::CLIENT_ID." = '".$id."'",
$this->db);
$num_rows = mysql_num_rows($sql);
if($num_rows > 0 )
return true;
else
return false;
}
Now in Curl pass parameter like
$url = $domain.'db/register/RegisterUserAPI/CheckIfUserExist/call_fun.php'; // path to your php file call_fun.php
$id="123"; // you can set it
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "id=$id");
$buffer = curl_exec($ch);
echo $buffer;
curl_close($ch);