Are there best practices for preventing variables from being displayed in the address bar when passing them through a link in PHP?

When passing variables through a link in PHP, it is common for the variables to be displayed in the address bar as query parameters. To prevent this, you can use the POST method instead of the GET method when submitting the form. This will send the data in the request body rather than in the URL, keeping the variables hidden from the address bar. 

```php
<form action="process.php" method="post">
    <input type="hidden" name="variable1" value="value1">
    <input type="hidden" name="variable2" value="value2">
    <button type="submit">Submit</button>
</form>
```

In the "process.php" file, you can access the variables using `$_POST['variable1']` and `$_POST['variable2']`. This way, the variables will not be displayed in the address bar when the form is submitted.

Keywords

PHP URL parameters GET method encryption security

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