[SOLVED] Simple regex

[deadonarrival]

I just need the regex to find a whole word within a string.

 

Eg

$string = "then he said hello to me";
$word = "hello";

if(_regex here_) 
{
//$word is in $string
}
else
{
//$word is not in string
}

 

I'm completely clueless with regex. Is it just something like preg_match("^(.*)$word(.*)$",$string); ?

[effigy]

If you're only working with ASCII, use /\bword\b/. Otherwise, see this post.

[deadonarrival]

I need it to find the word, but be case-insensitive and find the word within other words aswell. Is it just a case of using substr() on the second argument and using /\bword\b/i ?

[effigy]

How about stristr()?

[deadonarrival]

Hmm, never seen that before - nice suggestion.

 

But if I need to use it as if(function(regex,$str)){} will it still return true? Since it returns the remainder of the string?

[effigy]

Example #2 for stristr() demonstrates this. Do you need a regex (pattern)?

[deadonarrival]

Whoops, looked at the w3schools (first google result for stristr) instead of php.net

 

I think that's perfect, thankyou!