What are common issues when passing form data from an HTML file to a PHP file?

One common issue when passing form data from an HTML file to a PHP file is not properly setting the form's method attribute to "post" or "get". To solve this, ensure that the method attribute is set to "post" to securely pass sensitive data. Additionally, make sure the form's action attribute points to the PHP file that will process the form data. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data here
}
?>

Keywords

HTML PHP form data POST method validation

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