php receive post

1<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">
2  Name: <input type="text" name="fname">
3  <input type="submit">
4</form>
5<?php
6if ($_SERVER["REQUEST_METHOD"] == "POST") {
7  // do logic
8  $name = $_POST['fname'];
9}
10?>

1// Send data trough e.g. AJAX in JavaScript
2
3$.ajax({
4    type: "POST",
5    url: 'example.php',
6    data: { "num1": 1, "num2": 2},
7    contentType: "application/json; charset=utf-8",
8    dataType: "JSON",
9    async: false
10})
11
12// You would receive it like this:
13  
14$num1 = $_POST["num1"];
15$num2 = $_POST["num2"];
16
17$sum = $num1 + $num2;
18echo $sum;
19
20// Would output: 3