str_replace for distinct word

Question

suppose I have $str="nikparsa neginnikparsa somenikparsa" when I use

$str= str_replace('nikparsa', 'nik parsa', $str);
echo $str;

It will replace neginnikparsa with neginnik parsa too

I just want to replace when nikparsa is a distinct word

I mean like \bnikparsa\b in pregmatch but I don't know how to write it.

Apart from seeing simshaun's answer, you could google it and figure it out yourself. That's a useful exercise — Armen Tsirunyan, Feb 24 '12 at 18:30

score 6 · Accepted Answer · answered Feb 24 '12 at 18:28

6

$str = preg_replace('/\bnikparsa\b/i', 'nik parsa', $str);

answered Feb 24 '12 at 18:28

simshaun

biziclop · Answer 2 · 2012-02-24T18:33:42.627

0

Well, if you really don't want to use preg_replace, then:

substr( str_replace( ' stackoverflow ', '  do you see the apples?  ', " $str "), 1, -1 );

Read the comments about its limitations :)

edited Feb 24 '12 at 18:33

answered Feb 24 '12 at 18:28

biziclop

This won't replace words at the end of the sentence. – Armen Tsirunyan Feb 24 '12 at 18:29
And when my string is `stackoverflow woohoo stackoverflow!`? – simshaun Feb 24 '12 at 18:29
It's true, but I think this is the maximum you can do with `str_replace` :) – biziclop Feb 24 '12 at 18:31

2 Answers2