Php and javascript.

Yamakazi

Hey fella's

I've got a little problem in combining php and javascript.
I've got this multi select box.

<td><select name="Betrokken[]" multiple>

I used the [] so it would be an array that i can read every input in php.
Now if i try to adress it in javascript it doesn't work.
I tried:

window.document.opslaantaak.Betrokken.options.length;

and
window.document.opslaantaak.Betrokken[].options.length;

neither of them work.

It works fine if i change my <select> to:

<td><select name="Betrokken" multiple>

But then i can't read every entry in the array in PHP. Only the first one.

Please help me
😃

TIA

Weedpacket

Have you tried

window.document.opsplaantaak.elements['Betrokken[]'].options.length

Yamakazi

Yes tried that one 2.

I have an error: Object expected. On the line I call the function containing:

 window.document.opsplaantaak.elements[‘Betrokken[]’].options.length

Thx for the support.

bastien

become an array with the MULTIPLE attribute passing the vars with comma separators?

I though that by adding the [] to the select box that you are then creating an array of select boxes named 'Betrokken'?

One thing to try might be to take off the [] from the name and pass the var to the next page and echo it back to see how the values are passed...or use the GET method in the form tag and look in the URL and see what is there

if you're not dutch, you're not much😃

Yamakazi

If i take of the [] it only passes one value. Checked that already.

Thats why i added [] but now i can't adres them anymore in javascript.

🙁

Weedpacket

window.document.opsplaantaak.elements[0].options.length

is equivalent if 'Betrokken[]' is the 0th (i.e., the first) form field in opsplaantaak.

Yamakazi

Lol weedpacket. I found the reason why this one didn't work:

window.document.opsplaantaak.elements[‘Betrokken[]’].options

I copy pasted what you said but you made opsplaan from opslaan.
:p
Your dutch is even worse then mine 🙂

Thx alot!

Weedpacket

Errrrrrrr....... I just hope it wasn't something rude 😃

Yamakazi

😃 it means 'save task'

I'm still geting errors gonna check what it is this time 🙁

Yamakazi

Ok it still doens't work. Ik made a little example of what is want to do. So i uploaded it here. The code doesn't work and you get the object expected error. Does somebody know how to fix this?
If so please repost my example 🙂

THX

Ps: and for weedpacket I even written it in english 🙂

Yamakazi

I'm such an idiot 🙂

Weedpacket allready gave the answer

window.document.opsplaantaak.elements[0].options.length

works fine.

thx ALOT!!!! Case closed =)