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

Need help with cin setw
I made a program here is my code:

#include
#include
#i

phpmailer class & pop.gmail.com?
Code: <?php
$mail->IsSMTP();
$mail->Host = "pop.gmail.com";

PHP doesn't send my mail
Hi all, I found this and used it to send mail. Simple contact form with some required fields. The va

I am stumped
OK. Here is what I am trying to do. I have the conditions set, and if the conditions are met, I want

Just wondering what you think about my site
I am new to phpfreaks i just seen this form and thought it would be cool to see what other thought a

Cron Job and Output
I have php codes running under a cron job.
But everytime i output (echo) , it comes out as comple

default SAP userid
hi,, I just like to know if it is ok to use the default SAP user id (SAP*)?

php calculate
this code echoes correctly the sum but the inserted result is 0??
Code: <?php
$TotalNum

How to show more than 1 users with this code...
Hello,
i have a table that shows users only if I, as Administrator, want to be shown. But its sho

how to timeout $doc = new DOMDocument()->load($url)
I am currently using this $doc->load($url) to fetch an rss feed.
If a feed takes long than