Searching strings

[demonicfoetus]

Hi all, how would I go about searching a string for key words?

For example. User enters "What is your name?"
The script scans the string for the words what and name and returns the result 'Steve'.

Cheers,
Steve

[eriksmoen]

$query = "Steve";
$string = "This is Steve's Computer.";
if(eregi($query,$string)){ //ereg for case-sensative, eregi for case-insensative
  echo "$query was found in $string."
}
else{
  echo "Could not find $query in $string."
}

hope that helps.