What are the differences between using $_POST and $_GET in PHP for passing values after clicking a link?

When passing values after clicking a link in PHP, using $_POST is more secure as it sends data through the HTTP request body rather than the URL like $_GET. This means that sensitive information like passwords should be passed using $_POST to prevent them from being visible in the URL. Additionally, $_POST has a higher data limit compared to $_GET. 

// Using $_POST to pass values after clicking a link
<form action="process.php" method="post">
    <input type="hidden" name="id" value="123">
    <input type="submit" value="Click me">
</form>
```

In process.php:
```php
$id = $_POST['id'];
// Process the id value passed through $_POST

Keywords

$_POST $_GET PHP passing values link

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