"Web Service" for toggling the status of a favorite POST from wordpress and wordpress single favorite plugin

toggle_favorite.php

<?php

	
	
	$post_id = null;
	$site_id = null;
	$host = "http://localhost/wordpress";
	
	$url = "/wp-admin/admin-ajax.php";
	echo $_SERVER['REQUEST_METHOD'];
	var_dump($_GET);

	function parse_post($siteid, $postid){
		if($_SERVER['REQUEST_METHOD'] != "POST"){
			return false;
		}
		if( $_POST['siteid'] == null){
			return false;
		}
		if( $_POST['postid'] == null){
			return false;
		}
		return true;
	}

	function post($host, $url , $url_params, $data=null){
		$headers = "Content-type: application/x-www-form-urlencoded\r\n";
		foreach ($_COOKIE as $name => $value){
			$cookies .= "$name=$value;";
		}
		$headers .= "Cookie: $cookies\r\n";
		$sUrl = $host.$url.$action;
		$params = array('http' => array(
		    'method' => 'POST',
		    'header' => $headers
		));

		if( $data != null){
			$postdata = http_build_query($data);
			$params["http"]["content"] = $postdata;
		}		
		$ctx = stream_context_create($params);
		$fp = @fopen($sUrl, 'rb', false, $ctx);
		if (!$fp)
		{
		    throw new Exception("Problem with $sUrl, $php_errormsg");
		}

		$response = @stream_get_contents($fp);
		if ($response === false) 
		{
		    throw new Exception("Problem reading data from $sUrl, $php_errormsg");
		}

		return $response;
	
	}
	
	function is_favorite($favorites, $siteid, $postid){
		foreach ($favorites as $site_favorite) {
			if( $site_favorite->{'site_id'} == $siteid){
				foreach ($site_favorite->{'posts'} as $id => $value) {
					if($postid == $id){
						return true;
					}
				}
			}
		}
		return false;
	}


	function toggle_favorite($host, $url, $site_id, $post_id){
		/*GET NONCE*/
		$action = "?action=simplefavorites_nonce";
		$data =  array('action' => "simplefavorites_nonce");
		$tjson = json_decode(post($host, $url, $action, $data));
		$nonce = $tjson -> {"nonce"};
		/*GET FAVORITES*/
		$data =  array('action' => "simplefavorites_array");
		$action = "?action=simplefavorites_array";
		$response = post($host, $url, $action, $data);
		$tjson = json_decode($response);
		$favorites = $tjson -> {"favorites"};
		/*CHECK POST STATUS*/
		$post_is_favorite = is_favorite($favorites, $site_id, $post_id);
		if($post_is_favorite){
			$status = "inactive";
		}else{
			$status = "active";
		}
		/*SET POST STATUS*/
		$data =  array(
			'action' => "simplefavorites_favorite",
			'postid' => $post_id,
			'siteid' => $site_id,
			'nonce' => $nonce,
			'status' => $status
		);
		$action = "?action=simplefavorites_favorite";
		$response = post($host, $url, $action, $data);
		$tjson = json_decode($response);
		return $tjson;
	}

	function test($host, $url){
		$site_id = 1;
		$post_id = 1;
		return toggle_favorite($host, $url, $site_id, $post_id);
	}
	
	if(parse_post()){
		$site_id = $_POST['siteid'];
		$post_id = $_POST['postid'];
		toggle_favorite($host, $url, $site_id, $post_id);
	}else{
		//Return {success:false, error_msg:""}
	}
?>