<?php
/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class PhonetiQ
{
private $query;
private $query_len;
public function __construct()
{
$this->query = null;
$this->query_len = 0;
}
public function begin($query)
{
$this->query = $query;
$this->query_len = strlen($query);
}
public function next($row)
{
if ($this->query_len == 0)
return false;
$score = 0;
$entries = count($row);
foreach ($row as $str)
$score += $this->compare($str);
if ($score == 0)
return false;
return $score;
}
private function compare($str)
{
$str = $str;
return $this->str_cmp(metaphone($this->query), metaphone($str));
}
private function str_cmp($str1, $str2)
{
$score = 0;
$str1 = $this->reg_prep($str1);
preg_match_all("/([$str1]){2,}/", $str2, $out);
for ($i=0; $i<count($out[0]); $i++)
$score += strlen($out[0][$i]);
return $score;
}
private function reg_prep($s)
{
$o = '';
for ($i=0; $i<strlen($s); $i++)
$o .= $s[$i].'?';
return $o;
}
}
?>
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