How to convert items in array to a comma separated string in PHP?

Question

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How to create comma separated list from array in PHP?

Given this array:

$tags = array('tag1','tag2','tag3','tag4','...');

How do I generate this string (using PHP):

$tags = 'tag1, tag2, tag3, tag4, ...';

did you google first before posting the question here??? :):) — Nishu Tayal, Jun 07 '12 at 16:42
I'd like to point out that Googling this problem brings you here to this page, so in effect this question is a self-fulfilling prophecy, as otherwise this page would not exist :) — System24 Tech, May 11 '15 at 23:43

John Conde · Accepted Answer · 2012-06-07T16:39:47.370

125

 $tags = implode(', ', array('tag1','tag2','tag3','tag4'));

edited Jun 07 '12 at 16:39

answered Jun 07 '12 at 16:37

John Conde

3

This is a bad idea if you're trying to create reliable CSV strings. CSV has rules regarding commas inside fields, etc.. – photocode Sep 01 '16 at 05:03

score 22 · Answer 2 · answered Jun 07 '12 at 16:57

22

Yes you can do this by using implode

$string = implode(', ', $tags);

And just so you know, there is an alias of implode, called join

$string = join(', ', $tags);

I tend to use join more than implode as it has a better name (a more self-explanatory name :D )

answered Jun 07 '12 at 16:57

RutZap

2

And the good thing is that both takes the almost same time to execute :) I made a benchmark – Airy Feb 26 '14 at 13:16
2

Coming back at this after 5 years, I now tend to use `implode` instead of `join`, not sure why, but I find that explode-implode is more common in most codebases I've worked on now, and I prefer to align myself with the rest of the codebase in order to maintain a certain level of consistency. – RutZap Nov 30 '17 at 11:10

score 13 · Answer 3 · answered Jun 07 '12 at 16:38

13

Use PHP function Implode on your array

$mystring = implode(', ',$tags)

answered Jun 07 '12 at 16:38

GDP

score 7 · Answer 4 · answered Jun 07 '12 at 16:40

7

Simply implode:

$tags = implode(", ", $tags);

answered Jun 07 '12 at 16:40

Mike Mackintosh

4 Answers4