Articles Tricks And Hacks
Tricks And Hacks
Dynamic Document Search Engine - Part 1 - Page 5
by: M.Murali Dharan
|
February 17, 2004
As a result we get a list of words stored in an array returned to the called function.
FilterCommonAndDuplicateWords() Function:
This function is called after ExtractWords() function. This parses filtered words removes common words like a,is,
was,and
. Other words are taken as valid words, remove duplicate among them and then stored in an associative array
$wordMap and this array is returned to the called function.
<?php
function FilterCommonAndDuplicateWords( $wordList ) {
global $COMMON_WORDS;
global $MAX_WORD_LENGTH;
$wordMap = array();
foreach ( $wordList as $word ) {
$len = strlen( $word );
if ( ($len > 1) && ($len < $MAX_WORD_LENGTH) ) {
if ( !$wordMap[$word] ) {
if ( !$COMMON_WORDS[$word] ) {
$wordMap[$word] = 1;
}
}
}
}
?>
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