[SOLVED] Validating radio buttons

[micmania1]

How is this done?

[Barand]

Would you care to be a little more specific?

[micmania1]

ok theres 2 options, yes and no.

 

Do I use empty(), isset(), or is there a special function? I've never validated a radio button before.

[Barand]

Method 1

 

Set one of the buttons "checked" by default so a value is always posted

 

 

Method 2

 

If neither selected then no value posted

 

<?php
if (isset($_POST['action'])) {

    if (!isset($_POST['myrb']) ) {
        echo "Please select Yes or No" ;
    }
    else {
        echo 'You selected ' . $_POST['myrb'] ;
    }
}
?>
<form method='post'>
Yes <input type='radio' name='myrb' value='Yes'><br/>
No <input type='radio' name='myrb' value='No'><br/> 
<input type='submit' name='action' value='Submit'>
</form> 

 

Method 3

Have hidden field before the radio buttons on the form with same name then it's value is sent if no button selected

 

<?php
if (isset($_POST['action'])) {

    if ($_POST['myrb'] == 0 ) {
        echo "Please select Yes or No" ;
    }
    else {
        echo 'You selected ' . $_POST['myrb'] ;
    }
}
?>
<form method='post'>
<input type='hidden' name='myrb' value='0'>
Yes <input type='radio' name='myrb' value='Yes'><br/>
No <input type='radio' name='myrb' value='No'><br/> 
<input type='submit' name='action' value='Submit'>
</form> 

[micmania1]

Thanks a lot for the help. Spent about an hour searching online and couldn't find anything. It kept coming up with javascript.