What are the limitations of passing data through GET requests in PHP?

When passing data through GET requests in PHP, one limitation is that the data is visible in the URL, which can pose security risks if sensitive information is being transferred. To solve this issue, sensitive data should be passed through POST requests instead, as they are not visible in the URL. 

<form method="post" action="process.php">
    <input type="hidden" name="secret_data" value="sensitive_info">
    <button type="submit">Submit</button>
</form>
```

In the process.php file:

```php
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $secret_data = $_POST['secret_data'];
    // Process the sensitive data here
}
?>

Keywords

GET requests limitations passing data PHP security.

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