Isset, Php and Radio Button

[swtscp]

how do you validate if a radio button is selected if the value is 0

 

ty

[Blade of Grass]

Radio buttons have to be selected, and therefore they will always have a value.

$answer = $_POST['radio_button'];

This code above will assign the value of whichever selected radio button to the variable answer.

[swtscp]

Radio buttons have to be selected, and therefore they will always have a value.

 

$answer = $_POST['radio_button'];

if you thought about if(!isset($_POST['mycheckbox'])) its not gonna work since the value is 0

[Blade of Grass]

if you thought about if(!isset($_POST['mycheckbox'])) its not gonna work since the value is 0

I don't understand your question?

[swtscp]

i want to make sure a radio button is selected in php

[Blade of Grass]

i want to make sure a radio button is selected in php

In your example you used $_POST['mycheckbox'], so are you talking about radio buttons or check boxes?

[rexist]

i want to make sure a radio button is selected in php

just make one of the radio button selected by default through the html code

checked = "checked"

so it always has a value.

Blade of Grass has made it clear enough I think

[swtscp]

In your example you used $_POST['mycheckbox'], so are you talking about radio buttons or check boxes?

i said a radio button

[swtscp]

just make one of the radio button selected by default through the html code

checked = "checked"

so it always has a value.

Blade of Grass has made it clear enough I think

i dont want my radio button to be selected by default...

[Brenz]

i dont want my radio button to be selected by default...

 

Then you shouldn't be using radio buttons. Radio buttons are to allow a user to select from a range of options but require them to select one.

 

Sounds like you should be using checkboxes.

[swtscp]

checkboxes and radio buttons is different i want to user to select only one choice

[josh_pham]

i want to make sure a radio button is selected in php

 

What about this? My example below incorporates sessions, but the basic idea is just using if (!isset($poop): ...blah blah.

 

<?phpsession_start();if (!isset($_POST['radio'])):    $_SESSION['result'] = "You didn't choose a Radio Button..";else:    $_SESSION['result'] = $_POST['radio'];endif;header('Location: index.php');?>