How to remove certain trailing characters in PHP?

Question

I'm trying to make a LaTeX parser in PHP, and I want to remove certain trailing new lines (\\ signs).

But the problem is, I only want to remove the new line (the double backslash) if it's before everything else.

Like, I want to remove the first \\ in the following example:

\\3+6=9

But not this \\:

3+\\6=9

How can I do this with PHP?

score 2 · Accepted Answer · answered Dec 31 '12 at 07:41

2

use trim

$arr = trim('your_string','\\');

answered Dec 31 '12 at 07:41

Yogesh Suthar

Kalaiyarasan · Answer 2 · 2012-12-31T08:47:10.603

1

Use trim in php

i.e.,

trim("string","\\");

edited Dec 31 '12 at 08:47

answered Dec 31 '12 at 07:43

Kalaiyarasan

score 1 · Answer 3 · answered Dec 31 '12 at 10:48

1

You can do the following

$a = "\\aaaaa";

if (substr($a, 0, 1) === '\\') { 
    echo trim($a,'\\');     
 }

It will echo out "aaaaa". Hope this helps

answered Dec 31 '12 at 10:48

Roger

3 Answers3