How does PHP handle the retrieval of selected options without a submit button in forms?

When retrieving selected options without a submit button in forms, you can use JavaScript to trigger an event when an option is selected and send an AJAX request to a PHP script to handle the selection. The PHP script can then process the selected option and perform any necessary actions. 

<?php
if(isset($_POST['selected_option'])){
    $selected_option = $_POST['selected_option'];
    
    // Process the selected option here
    echo "Selected option: " . $selected_option;
}
?>

Keywords

PHP form handling selected options JavaScript event listeners

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