deleteFromPlanner.php

<?php 
require 'connect.php';
header('Access-Control-Allow-Origin: https://engineersabroad.uvacreate.virginia.edu'); //comment out when using localhost
//header('Access-Control-Allow-Origin: http://localhost:4200'); //comment out when using hosted server
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Headers: X-Requested-With, Content-Type, Origin, Authorization, Accept, Client-Security-Token, Accept-Encoding');
header('Access-Control-Max-Age: 1000');  
header('Access-Control-Allow-Methods: POST, GET, OPTIONS, DELETE, PUT');

// get the size of incoming data
//$content_length = (int) $_SERVER['CONTENT_LENGTH'];

// retrieve data from the request
$postdata = file_get_contents("php://input");

// Process data
// (this example simply extracts the data and restructures them back)
if(isset($postdata) && !empty($postdata)){
    // Extract json format to PHP array
    
    $request = json_decode($postdata, TRUE);

    $email = mysqli_real_escape_string($con, trim($request['email']));
    $program = mysqli_real_escape_string($con, trim($request['program']));
    $transferredCourses = mysqli_real_escape_string($con, trim($request['transferredCourses']));
    $country = mysqli_real_escape_string($con, trim($request['country']));
 

    $sql = "DELETE FROM `planner` WHERE (email='{$email}' AND program='{$program}' AND transferredCourses='{$transferredCourses}' AND country = '{$country}')";

    if(mysqli_query($con, $sql)){
        http_response_code(201);
        echo json_encode(true);
    }
    else{
        http_response_code(422);
        echo json_encode("Error Deleting Planner Object");
    }
}

?>