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

Login logout link help
Hi all,

Im new to php and Im having trouble creating a login/logout link for my page that dis

Help With editting and deleting form
Hallo !!

So look at this image :

http://img194.imageshack.us/img194/8272/snapshot5f.pn

php form help
Hey,

I use a control file to set my meta tags and titles

Here's an example
Code: &a

Quick fix: Conditional statement with an array
Hi, I'm getting the temperature value off of the Environment Canada website along with the icon file

creating a 1 to 100 in a table
hi guys I am a newb in php need some help.

I have a table with 1 column and 100 rows and in

Need some ideas as to how to go about sorting this array...
Here's how the array's are created..

Code: <?php
while ($x = readdir($dp)) {

mysql select with $_get ?
Hi, i have this code:
Code: // If char id is 0 and character dont exist do:
if ($_GET["id

Multiple server callbacks (NOT POSTBACKS)
Hello, I have 2 different javascript client side functions that are on timers. When the timers elap

AutoChoosing a CSS file based on URL
Hey everyone,

I have a site that has multiple URLs and CSS files.

Based on the URL tha

Restricted access to sub-folder in iis6 doesn't work?
Basically I'm trying to add restriction to sub-folder (which contains pdf) in web.config for iis6 as