How can one check if a checkbox is checked in PHP?

To check if a checkbox is checked in PHP, you can use the isset() function to determine if the checkbox value has been submitted in the form data. If the checkbox is checked, its value will be present in the form data, and isset() will return true. You can then perform the necessary actions based on the checkbox being checked or not. 

if(isset($_POST['checkbox_name'])){
    // Checkbox is checked
    // Perform actions here
} else {
    // Checkbox is not checked
    // Perform alternative actions here
}

Keywords

PHP checkbox checked isset form submission

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