javascript & PHP arrays

[Anon]

hi

i have an array of checkboxes created by php, and the number of elements is dynamic. i want to write the values of any checked boxes to a confirm box, i.e. they choose a few options, and the confirm box asks

"Are you sure you want to remove these files : file1, file2, file3 etc?" where file1, file2 etc are the values of the checkboxes.

although i've found several useful threads here, there isn't one that works for me.

here is a little snippet of the output at the moment :

<input type=checkbox name=lists[] value=8> <a href=/secure/majordomo/index.php?id=8#start>8</a><br>

<input type=checkbox name=lists[] value=ac> <a href=/secure/majordomo/index.php?id=ac#start>ac</a><br>

<input type=checkbox name=lists[] value=bermuda> <a href=/secure/majordomo/index.php?id=bermuda#start>bermuda</a><br>

<input type=checkbox name=lists[] value=bermuda-pm> <a href=/secure/majordomo/index.php?id=bermuda-pm#start>bermuda-pm</a><br>

<input type=checkbox name=lists[] value=bermuda2> <a href=/secure/majordomo/index.php?id=bermuda2#start>bermuda2</a><br>

and there's a aubmit button which will call a javascript function

any help on this matter would be greatly appreciated, as although it's not vital to the functionality it's driving me crazy!!

cheers
rob

[tomhath]

This should get you started. Javascript and php don't seen to agree on how to create the array...

<script>
function displaylist(lists) {
s = "";
for (i=0; i<lists.length; i++) {
if (lists.checked) {
s = s + " " + lists.value;
}
}
window.alert(s);
}
</script>

<input type=checkbox name="lists" value="8"> <a >8</a><br>

<input type=checkbox name="lists" value="ac"> <a t>ac</a><br>

<input type=checkbox name="lists" value="bermuda"> <a>bermuda</a><br>

<input type=checkbox name="lists" value="bermuda-pm"> <a>bermuda-pm</a><br>

<input type=checkbox name="lists" value="bermuda2"> <a>bermuda2</a><br>

<input type="button" onclick="displaylist(lists)" value="Delete">

[tomhath]

Something in the forum code ate part of the for statement where the less than operator was. Should be "i less than lists.length; i++) { "

[Anon]

thanks mate

i found another attribute of forms, the elements[] tag which seemed to do the trick:

function check_remove_list() {
var lcount = document.listform.listcount.value;
var q;
var lstring = "";
for(q=0; q<=lcount; q++) {
if(document.listform.elements['lists[]',q].checked == 1)
lstring = lstring + " " + document.listform.elements['lists[]',q].value;
}
new_lstring = lstring.replace(/\s+/gi, "\n* ");
var msg = "Are you sure you want to remove these lists?\n" + new_lstring;
return (confirm(msg));
}