note 62715 deleted from function.similar-text by googleguy
| From: | googleguy@php.net | Date: | Wed, 16 Jan 2013 05:28:26 +0000 |
| Subject: | note 62715 deleted from function.similar-text by googleguy | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-193090@lists.php.net to get a copy of this message | ||
Note Submitter: dmitry dot polushkin at gmail dot com
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Well... hard to explain, why I have written this function, but maybe it will be usefull.
<?php
// returns the percentage of the string "similarity"
function str_compare($str1, $str2) {
$count = 0;
$str1 = ereg_replace("[^a-z]", ' ', strtolower($str1));
while(strstr($str1, ' ')) {
$str1 = str_replace(' ', ' ', $str1);
}
$str1 = explode(' ', $str1);
$str2 = ereg_replace("[^a-z]", ' ', strtolower($str2));
while(strstr($str2, ' ')) {
$str2 = str_replace(' ', ' ', $str2);
}
$str2 = explode(' ', $str2);
if(count($str1)<count($str2)) {
$tmp = $str1;
$str1 = $str2;
$str2 = $tmp;
unset($tmp);
}
for($i=0; $i<count($str1); $i++) {
if(in_array($str1[$i], $str2)) {
$count++;
}
}
return $count/count($str2)*100;
}
?>