Comma seperated implode & modifying returned string.

Posted on 16th Feb 2014 07:03 pm by admin

I have a PHP post form that posts up to 4 variables. I need whatever variables are passed to be combined into one comma seperated string (eg variable1,variable2,variable3,variable4). This i can do with the code below.

Code: [Select]$combo = array($one, $two, $three, $four);
$list = implode(",", $combo);

my problem is that the form fields are optional by design so that the user doesn't always post all 4 variables. Sometimes they will post 1, sometimes they will post all 4. So if a user only selects two fields and submits the form i will end up with a string looking like:
variable1,variable2,,
when what i really want is (note the removal of the trailing commas at the end of the string):
variable1,variable2

Can anyone point me towards a possible solution for this?

Your Answer:

Login to answer

Other forums

Add weeks in a query?
I have a SQL that summarizes the quantity per week. The weeks that has no value does not exist in th

Deleted Delivery but material wont return
We deleted a delivery but the material its still pending.

We made a reverse goods movemen

Sessions Value Not Saved
Hi,

Im making a login form and im using this code:
Code: if($login=="true"){

Help with PHP and checkboxes
I am posting this for a friend of mine, i wrote a small script for her to process her form data to a

Adding delete feature to my forum
Hello I am currently trying to add a delete feature to my forum. I believe I have everything built r

PHP Code reffering to database, doing something wrong.. pls help
Well i am quite new with PHP
and for school we have to make a PHP script which reffers to a Data

Help with Hyperlink
Hi,

What I am trying to do may be simple, I just can't get it to work. Ok...

I am usin

how to easy edit text, with box? Help.
Hi.
I have a little problem. I'm doing a webpage for my aunt and I would like to make it as easy

mysqli_fetch_assoc returns multiple arrays, how to return a single array
Hello, I am using mysqli_fetch_assoc which is returning multiple rows, so it looks like:

Code

Help with setcookie()
Merry Xmas to those on this foruum
Older guy here with some experience but not allot so please be