What best practices should the user follow when handling form submissions and processing data in PHP scripts to avoid common pitfalls like empty pages on submission?

When handling form submissions in PHP scripts, it is crucial to check if the form has been submitted before processing the data. This can help prevent empty pages on submission, as the script will only execute the processing code when the form has been submitted. One way to achieve this is by using the isset() function to check if the form data has been submitted. 

<?php
if(isset($_POST['submit'])) {
  // Process form data here
} else {
  // Display the form
}
?>

Keywords

form submissions data processing PHP scripts empty pages validation.

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