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File: sqlite_fulltextsearchex.class.php

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  Classes of Setec Astronomy  >  SQLite Full Text Search  >  sqlite_fulltextsearchex.class.php  >  Download  
File: sqlite_fulltextsearchex.class.php
Role: Class source
Content type: text/plain
Description: Extended class with exponential word prominence calculation
Class: SQLite Full Text Search
Add Full Text Search SQL commands to SQLite
Author: By
Last change: Added the code of wordpreparation method
Date: 9 years ago
Size: 1,114 bytes


Class file image Download

require_once (dirname (__FILE__) . '/sqlite_fulltextsearch.class.php');

sqlite_fulltextsearchex extends sqlite_fulltextsearch {

$striptags false;

sqlite_fulltextsearchex () {
parent::sqlite_fulltextsearch ();
$this->striptags false;

/* override */
function prominence ($position$string_words_count$against_words_count) {
// exponential prominence
return (($position $position) / $string_words_count);

/* override */
function wordspreparation (&$string, &$against) {
        if (
$this->striptags) {
$string preg_replace ('/<script.*?\>.*?<\/script>/si'' '$string); 
$string preg_replace ('/<style.*?\>.*?<\/style>/si'' '$string); 
$string preg_replace ('/<.*?\>/si'' '$string); 
$string html_entity_decode ($string);
$against preg_replace ('/<script.*?\>.*?<\/script>/si'' '$against); 
$against preg_replace ('/<style.*?\>.*?<\/style>/si'' '$against); 
$against preg_replace ('/<.*?\>/si'' '$against); 
$against html_entity_decode ($against);