How to Remove a specific character from the end of the string in php or regex

Question

I am generating a string dynamically. For example The string looks like this

$string = "this-is-a-test-string-for-example-";

It can also be like this

$string = "this-is-a-test-string-for-example";

I want if there is a hyphen "-" at the end of the string, It should be removed. How can I do that in php or regex?

Quite easily: substitute `-$` with the empty string. – fge Jun 01 '13 at 17:35 — fge, Jun 01 '13 at 17:35

Ochi · Accepted Answer · 2013-06-01T17:48:02.447

14

http://pl1.php.net/trim - that function gets characters to trim as last parameter

trim($string,"-");

or as suggested for right side only

rtrim($string,"-");

edited Jun 01 '13 at 17:48

answered Jun 01 '13 at 17:36

Ochi

score 2 · Answer 2 · answered Jun 01 '13 at 17:40

2

If it always at the end (right) of the string this will work

$string = rtrim($string,"-");

answered Jun 01 '13 at 17:40

score 1 · Answer 3 · answered Jun 01 '13 at 17:36

1

$cleanedString = preg_replace('/^(this-is-a-test-string-for-example)-$/', '$1', $string);

answered Jun 01 '13 at 17:36

tomsv

score 0 · Answer 4 · answered Jun 01 '13 at 17:37

0

$delete = array('-');

if(in_array($string[(strlen($string)-1)], $delete))
    $string = substr($string, 0, strlen($string)-1);

You can add other characters to delete into $delete array.

answered Jun 01 '13 at 17:37

Felipe Francisco

4 Answers4