What are the best practices for handling form submissions within a loop in PHP?

When handling form submissions within a loop in PHP, it is important to ensure that the form processing logic is only executed when the form is actually submitted. This can be achieved by checking if the form has been submitted using the isset() function on the submit button's name attribute. By doing this, you can prevent the form processing logic from being executed on every iteration of the loop. 

<?php
if(isset($_POST['submit'])) {
    // Form processing logic here
}

// Loop where form is displayed
for($i = 0; $i < 5; $i++) {
    ?>
    <form method="post" action="">
        <!-- Form fields here -->
        <input type="submit" name="submit" value="Submit">
    </form>
    <?php
}
?>

Keywords

form submissions loop PHP validation security

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