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

split values
I have values that are returned to me in this format:

name=>test,age=>49

Hyperlink is adding an extra gap to variable
Hi, here's my problem..

I have a php generated page with a hyperlink which opens in a new win

Could Someone Please Debug This?
I was wondering if someone could debug this script for me. I realize it's not the tidest script (and

PHP page loading in Firefox but not in IE
hello,

i am currently doing a project in PHP and i have a problem. If I view the project in M

JSON SORT WITH PHP
I have two products that I want to sort by say "Id:17, value: xxx" using php
The page w

Remove values in array2 from array1
I have two arrays.

Array 1 is where the array key holds various different numbers. For exampl

Multiple forms on the same page (safari)
Hello everyone,

I have 3 forms on the same page, that opens in a new window and submits to a

why is it over writing
Code: $filepaths[] = $_FILES['new_image'];
foreach ($filepaths as $filepath)
{
$imagename =

How can i steam a video on my PHP site? (non YouTube)
Basically I have a PHP site and don't want to give page rank to YouTube. I just want to stream a bas

The page should be expire when cilck back button
hi,
i'm new to php world.
i create user registration page.
when i submit it,data goes to my