Re: Extract from string, version 2.0

OK, this is less elegant (to me, anyway), and probably a bit slower, but: function word_occurrence($word,$phrase) {

   $word = strtolower($word);     # this way,

$phrase = strtolower($phrase); # case is irrelevant $Bits = split('[^[:alnum:]]+', $phrase); $count = 0; for ($i=0; $i<count($Bits); $i++) {

      if ($Bits[$i] == $word) { $count++; }

} return ($count); } It should also handle hyphenated & apostrophied (is that a word?) words correctly, such as coffe's a drag or coffe-heads are strange If you want to count words that INCLUDE dashes or apostrophes, you'd have to use "[^[:alnum:]'-]+" in the split() function. Or, just break the string up by whitespace, and use '[[:space:]]+'. -steve ---Original Message --- At 11:07 PM +0200 4/14/01, n e t b r a i n wrote:

Hi all, anyone have or know where I can find a small function in order to extract from a string the most relevant words in it? something like this: $var="I love coffe ... Coffe is from Brazil and coffe with milk .."; $occurence=2; //$occurence means word that are repeat 2 or more times my_dream_funct($var,$occurence); //the funct now return the word _ coffe _ many thanks in advance max ps.plz note: I need that it works on php3

Well, just offthetopofmyhead: function word_occurrence($word,$phrase) {

   $word = strtolower($word);     # this way,

$phrase = strtolower($phrase); # case is irrelevant $Bits = split($word.'[^[:alnum:]]*', $phrase); return (count($Bits)-1); } I tested this, and it works fine (php 3.0.12) EXCEPT it counts 'coffecoffe' as TWO words, not zero. If that's the behavior you want, then it's fine. Now I'm intrigued...I want to find a single regular expression that will NOT match 'coffecoffe'. Perhaps preg_ functions (available on PHP >= 3.0.9). And, I tried things like split('[^[:alnum:]]*'.$word.'[^[:alnum:]]*', " $phrase ") ...didn't work. -steve -- +----------- 12 April 2001: Forty years of manned spaceflight -----------+ | Steve Edberg University of California, Davis | | sbedberg@ucdavis.edu Computer Consultant | | http://aesric.ucdavis.edu/ http://pgfsun.ucdavis.edu/ | +-------------------------- www.yurisnight.net --------------------------+