Re: Couple of questions

Hi, Friday, October 25, 2002, 3:46:04 AM, you wrote: JN> Hi guys and gals, JN> I know this list is for php, but I've been trying to find an answer to JN> a JavaScript releated question for the past two day, and there has been JN> no response on the two JS mailing lists I belong too. I have two JN> questions.... JN> 1) Does anyone know of a JS mailing list that actually has a good JN> amount of traffic (receives more than 10 email messages a day)? JN> 2) I'm trying to validate a checkbox element in a form. Due to using JN> php to process this form, the checkbox element must have a name ending JN> in square brackets... JN> <input type="checkbox" value="somevalue" name="somename[]" JN> /> JN> The problem I'm having is trying to loop thru this element to see if at JN> least one of the boxes are checked.... JN> for ( i = 0; i < document.forms[0].elements['somename[]'].length; i++ ) JN> { JN> alert ( document.forms[0].elements['somename[]'][i].checked ); JN> } JN> This gives me an error. What's the proper syntax for this? Not sure but I think java won't accept [] in a variable name. You can get the same effect by using name_1 name_2 and split them into an array yourself. Not as nice as PHP doing it but it will pass java ok. Here is a quick example: <? if(isset($_POST['submit'])){ $chk = array(); while(list($key,$val) = each($_POST)){ if(ereg('chk_',$key)){ $a = strtok($key,'_'); $i = strtok('_'); $chk[$i] = $val; } } echo '<pre>'; print_r($chk); echo '</pre>'; } ?> <form action="<?echo $_SERVER['PHP_SELF']?>" method="post"> <input type="checkbox" name="chk_1"> 1 <br> <input type="checkbox" name="chk_2"> 2 <br> <input type="checkbox" name="chk_3"> 3 <br> <input type="checkbox" name="chk_4"> 4 <br> <input type="submit" name="submit" value="submit"> </form> -- regards, Tom