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

Undefined variable when using $_SERVER['PHP_SELF']
Hi guyz, please suggest me something...
On first.php I have one input field NAME, and on posting

PHP Error
On my .php page I have a drop down box that has several names in it. When a user clicks the name &am

upload image name with extension using php
hi frds..

<input id="file1" type="file" name="file[]" &a

timezone change with date()
so i put all my times for posts in my made from scratch forum(not phpbb3 or sm)
in my mysql db u

Interpret Order
Hello all,

I'm wondering if I have this:

Code: $switch = array(
'one' =>

MySQL-PHP Query Results Help
Hello all. I'm hoping to be able to get some help in solving a problem with query/rowcount output. I

Getting the full city list from maxminds geoip database
I am suprised I can't find any references to this.

I have maxminds geoip lite installed and i

Limiting checkboxes?
Hi guys,

I have this code: Code: if(isset($_POST['selected'])) {
foreach($_POST['selec

Convert Binary String to Decimal
Trying to Get:
Decimal: 305419896

Out of:
Binary String: xV4

Help a newbee save my job !
Hey guys i am dying here i am new to php and would like for someone to help me with this problem