Question

I use this code to validate select box value. But my problem is when I submit form without selecting an option in select box its not going to error message.

if ( !isset( $_POST['how_hear'])) {
    $errors[] = 'Select an option from How did you hear us select box';                             
} else {
    $howHear = $_POST['how_hear'];
}

this is my select box

$howHear = array( 1 =>  'option value 01', 
                                'option value 02', 
                                'option value 03', 
                                'option value 04', 
                                'option value 05', 
                                'option value 06', 
                                'option value 07', 
                                'option value 08'
                        );

echo "<select name='how_hear'>
        <option>--Select an Option--</option>\n";

    foreach ( $howHear AS $key => $value) {
        echo "<option value='{$key}'";

        // Check for stickyness:
        if ( $_POST['how_hear'] == $key){
            echo " selected='selected'";
        }
        echo ">$value</option>\n";
    }
echo "</select>\n";

Can anybody tell my where I have gone wrongly?
Thank you.

Answer 1

The problem seems to be that how_hear is set. The default is

--Select an Option--

Check that

$_POST['how_hear'] != "--Select an Option--"

Alternatively, update your select field so that the default value is 0 (this would be the correct thing to do). And then check that the value is non-zero.

<option value="0">--Select an Option--</option>