Question

I hav especific need of removing word from string, But I am having problem when that word has dot (.) character.

Lets see here is the string and what I have tried so far?

$result = 'Hello Ka Kashish.';
$result = preg_replace('/\bKa\b/i', '', $result);

I will get the expected result 'Hello Kashish.'

But if the string is like below, It is not working

$result = 'Hello Ka. Kashish.';
$result = preg_replace('/\bKa.\b/i', '', $result);

It gives me result 'Hello Ka. Kashish.'
Why this .(dot) is not working?
Please give me solution.

And if I can achive this word removal in any other way, pLease let me know.
I want to remove only word not set of charaters, as ‘Ka’ word will be removed, but ‘Ka’ will not be removed from ‘Kashish’.
Please help me.

Thanks in Advance

Answer 1

This is because the dot can match any character.

The problem, too, is that \b really matches a word frontier, ie a position where a word character is followed by a non word character, or a non word character is followed by a word character. But as a dot is not a word character and neither is a space for that matter, it won’t match.

Maybe you should try that instead:

preg_replace('/\bKa(\W|$)/i', '', $result)