removing trailing commas from a string

Question

I am creating comma seperated list in PHP, however I can not work out how to remove trailing commas from a string - for examples I may generate a list that looks like this,

RefundApplicationForm_(1)7.pdf,Mackintosh_-Shaker-_Suite_1514.pdf,,,,

I have tried,

str_replace($list, ",", "");

but that removes all the commas I only want to remove the last comma and any commas that have no value between them.

I am making the list by doing the following,

$list .= $value.",";

By the way, found the above post by: https://www.google.com/search?q=php+removing+trailing+commas+from+a+string — Wesley Murch, Jul 29 '13 at 12:41

score 8 · Accepted Answer · answered Jul 29 '13 at 12:39

8

Use this

$list = rtrim($list, ',');

answered Jul 29 '13 at 12:39

chandresh_cool

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score 0 · Answer 2 · edited Jul 29 '13 at 12:43

0

$list = substr($str, 0, -1);
personally I prefer the other way around: start with a comma and remove it with a
$list = substr($str, 1);

edited Jul 29 '13 at 12:43

HamZa

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answered Jul 29 '13 at 12:41

Walter81

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removing trailing commas from a string

2 Answers2