Re: checkboxes / form elements

From: Date: Sat, 13 Jul 2002 03:45:16 +0000
Subject: Re: checkboxes / form elements
References: 1  Groups: php.general 
Request: Send a blank email to php-general+get-107469@lists.php.net to get a copy of this message
On Fri, Jul 12, 2002 at 10:59:00PM -0400, Blue Presley wrote: > Hello. I have a form that I would like to use checkboxes. > ... snip ... > I've been told that if I want to manipulate each > one then I should use 'name=checkbox[]' and make an array out of it. okay, > fine. but how do i access them in my PHP script? I know I have to use the > $_POST[] array, but this creates a multidiminsional array, yes? do i access > it like $_POST[checkbox[1]]?? or $_POST[checkbox][1]?? The latter. But note, if a box isn't checked, it's not going to be sent, so won't be in the array. <form> <input type="checkbox" name="StateID[]" value="32" /> NV <input type="checkbox" name="StateID[]" value="33" checked /> NH <input type="checkbox" name="StateID[]" value="34" checked /> NJ </form> In this case $_POST['checkbox'][0] would be 33 and ...[1] would be 34. Sometimes it's handy to identify the key upfront: <form> <input type="checkbox" name="StateID[32]" value="608" /> NV <input type="checkbox" name="StateID[33]" value="2" /> NH <input type="checkbox" name="StateID[34]" value="40" checked /> NJ </form> That would yield $_POST['checkbox']['34'] = 40. A nice way to handle incomming checkboxes is this: while ( list($Key, $Val) = each($checkbox) ) { # do what you need to do... # for example, show what was sent... echo "<br />$Key = $Val\n"; } Enjoy, --Dan -- PHP classes that make web design easier SQL Solution | Layout Solution | Form Solution sqlsolution.info | layoutsolution.info | formsolution.info T H E A N A L Y S I S A N D S O L U T I O N S C O M P A N Y 4015 7 Av #4AJ, Brooklyn NY v: 718-854-0335 f: 718-854-0409

« previous php.general (#107469) next »