ตัวอย่าง check if post request php

There are two main ways to check if a request is a POST request in PHP:

1. Using the $_SERVER[‘REQUEST_METHOD’] variable:

This method checks the HTTP request method used to submit the form.

PHP

<?php

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
  // This code will run only if the request is a POST request
  // Process the data submitted in the POST request (e.g., from a form)
  $name = $_POST['name'];
  $email = $_POST['email'];
  
  // ... your form processing logic here ...
  
  echo "Hello, $name! Your email is $email.";
} else {
  // This code will run if the request is not a POST request
  // You can display a message or redirect to a different page
  echo "This page is only accessible through a POST request.";
}

?>

2. Using the isset() function with $_POST:

This method checks if the $_POST variable is set, which indicates a POST request was made.

PHP

<?php

if (isset($_POST)) {
  // This code will run if the request is a POST request (and $_POST is set)
  // Process the data submitted in the POST request (e.g., from a form)
  $name = $_POST['name'];
  $email = $_POST['email'];
  
  // ... your form processing logic here ...
  
  echo "Hello, $name! Your email is $email.";
} else {
  // This code will run if the request is not a POST request
  // You can display a message or redirect to a different page
  echo "This page is only accessible through a POST request.";
}

?>

Choosing the Right Method:

Both methods achieve the same result. The first method ($_SERVER['REQUEST_METHOD']) is generally considered more reliable as it directly checks the HTTP method. However, the second method (isset($_POST)) is simpler and can be sufficient for most cases.

Additional Considerations:

• Make sure your HTML form uses the POST method for submitting data:

HTML

<form method="post" action="your_script.php">
  </form>

• Remember to validate the data submitted in the POST request to prevent security vulnerabilities like injection attacks.