How can a form be submitted from one PHP file to another PHP file?

To submit a form from one PHP file to another PHP file, you can use the 'action' attribute in the form tag to specify the URL of the PHP file you want to submit the form data to. You can then use the '$_POST' or '$_GET' superglobal arrays in the receiving PHP file to access the form data that was submitted. 

<!-- Form in first PHP file -->
<form action="second_file.php" method="post">
    <input type="text" name="username">
    <input type="submit" value="Submit">
</form>
```

```php
// second_file.php
if(isset($_POST['username'])) {
    $username = $_POST['username'];
    echo "Hello, $username!";
}

Keywords

form submission PHP file POST method action attribute data transfer

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