Function to check if string A contains string B

[globay]

I have a string (ABC) and want to check if another String contains the first one.

Important:
- Lower Case, Upper Case should be regarded as the same.
- String (ABC) for example should be found in String(-§$%abCd)

Does anybody know how to do this?
I coun't find a solution so far.

Help is greatly appreciated.

--
globay

[aspr1n]

$needle;  
$haystack; 
strstr( $haystack, strtolower( $needle ) );

or

stristr( $haystack, $needle );

asp

[ShawnR]

And in perl:

$haystack = '-§$%abCd';
$needle = 'ABC';

$_ = $haystack;
if (/$needle/i) {
# .....
}

Shawn

[globay]

Thanks, that works perfectly!