使用PHP将JSON数组添加到MySQL数据库

I have a AngularJS Function that sends an array to my PHP. But how do I go through this array in PHP and insert each value into MySQL database. SoI have the following $http post:

var data = {
  "username": $scope.un,
  "courses": $scope.selectedCourses
}

$http({
url: "submitCourses.php",
method: "POST",
 data: data
 }).success(function(response) {
   $scope.courseSubmitResponse = response.resp;

 });

And the $scope.selectedCourses looks like ["COEN 10", "MATH 54", "HIST 99"] when sent over. So how could I insert each of these values into my database? Is there a way I can assign a php variable to the array, then do a for loop of that php variable? Your help is greatly appreciated.

I am assuming data transmitted from client side to server side is json.

below is the snippet:

$data = json_decode($data, true);

foreach($data as $element) {
    list($subject, $mark) = explode(" ", $element);
    // insert using PDO into the database.
}

Access your data using:

$data         = json_decode(file_get_contents('php://input'));

$user         = $data->username;
$coursesArray = $data->courses;

Then loop over your courses and do what you need

var data = {
  "username": $scope.un,
  "courses": $scope.selectedCourses
}

$http({
url: "submitCourses.php",
method: "POST",
 data: data
 }).success(function(response) {
   $scope.courseSubmitResponse = response[0].resp;

 });

Try this code only if response array length is one and if you got multiple records in response you need to get value dynamically might for loop is been usefull