how to check a radio button

[juicy]

By default, I create several radio button and one of it checked="checked".
Now I would like to do some checking condition, and check the radio button
when condition match.

<?php if($c = 1){ ?>
<!-- check first radio button -->
<? else ?>
<!-- check second radio button -->
<? } ?>

Please give some idea or useful links. Thanks.

 

[Mark Parnell]

Deciding to do something for the good of humanity, juicy

<?php if($c = 1){ ?>

Please give some idea or useful links. Thanks.

<?php if($c == 1) { ?>
<input type="radio" checked="checked" value="1" name="c">
<input type="radio" value="2" name="c">
<? } else { ?>
<input type="radio" value="1" name="c">
<input type="radio" checked="checked" value="2" name="c">
<? } ?>

Perhaps not the most elegant solution, but it works. Gets messier the
more radio buttons you have. If it's only 2 like your example, then the
above will suffice.

 

[Bob Long]

In

Deciding to do something for the good of humanity, juicy


<?php if($c == 1) { ?>
<input type="radio" checked="checked" value="1" name="c">
<input type="radio" value="2" name="c">
<? } else { ?>
<input type="radio" value="1" name="c">
<input type="radio" checked="checked" value="2" name="c">
<? } ?>

Is it 'checked="checked"'? Or simply 'checked'? As in:

<input type="radio" checked value="2" name="c">

 

[Mark Parnell]

Deciding to do something for the good of humanity, Bob Long

Is it 'checked="checked"'? Or simply 'checked'?

Either is valid in HTML; only the first is in XHTML. IIRC some browsers
don't cope well with the short version either.

 

[yomna_fahmy]

Hi juicy,

you can add the word checked by the condition, like this...

<input type="radio" name="color" value="1"
<? if($c==1) echo 'CHECKED';?> >

but careful because Checkboxes are off by default, but there is no default for which radio button is on when the form loads; most browsers have none on, some put the first one on.

Hope this helps