What are the potential issues with using isset() to check the radio group selection in PHP?

Using isset() to check the radio group selection in PHP may not work as expected because isset() only checks if a variable is set and not empty. To properly check the selected radio button in a group, you can use the $_POST superglobal array to check if the value of the radio button is set and not empty. 

if(isset($_POST['radio_group']) && !empty($_POST['radio_group'])) {
    $selected_value = $_POST['radio_group'];
    
    // Process the selected radio button value
} else {
    // Handle case where no radio button is selected
}

Keywords

isset radio group selection PHP issues

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