metaphone

(PHP 4, PHP 5)

metaphoneBir dizgenin metafon anahtarını hesaplar

Açıklama

string metaphone ( string $dizge [, int $sesler = 0 ] )

dizge dizgesinin metafon anahtarını hesaplar.

Benzer sesletime sahip sözcükler için aynı anahtarı üretmesi bakımından soundex() işlevine benzer. Ancak İngilizce okunuşun temel kuralları kullanıldığından soundex() işlevine göre daha doğru anahtarlar üretir. Ayrıca bu işlevin ürettiği anahtarlar değişken uzunluktadır.

Metafon Lawrence Philips <lphilips at verity dot com> tarafından geliştirilmiş ve şu kitapta açıklanmıştır: ["Practical Algorithms for Programmers", Binstock & Rex, Addison Wesley, 1995]

Değiştirgeler

dizge

Girdi dizgesi.

sesler

Dönen Değerler

Metafonu bir dizge olarak döndürür.

add a note add a note

User Contributed Notes 6 notes

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17
mail at spam-off dot iaindooley dot com
10 years ago
you can use the metaphone function quite effectively with phrases by taking the levenshtein distances between two metaphone codes, and then taking this as a percentage of the length of the original metaphone code. thus you can define a percentage error, (say 20%) and accept only matches that are closer than that. i've found this works quite effectively in a function i am using on my website where an album name that the user entered is verified against existing album names that may be similar. this is also an excellent way of people being able to vaguely remember a phrase and get several suggestions out of the database. so you could type "i stiched nine times" with an error percentage of, say, 50 and still get 'a stitch in time saves nine' back as a match.
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4
php at casadebender dot com
6 years ago
A double metaphone pecl module is available: http://pecl.php.net/package/doublemetaphone
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0
isloera at usedformyjunk dot com
2 months ago
I changed my domain so the code for spanish_methaphone  is here

http://www.ojocaliente.net/spanish_metaphone.php

Please update the link ;-)
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0
isloera at usedformyjunk dot com
2 months ago
I changed my domain so the code for spanish_methaphone  is here

http://www.ojocaliente.net/spanish_metaphone.php

Please update the link ;-)
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-1
Ray.Paseur often uses Gmail
1 year ago
Metaphone() apparently ignores non-English characters.  Comparing Plaçe TO Place yields "PL" and "PLS."  A similar result comes from soundex().
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-2
Vipindas K.S
6 years ago
metaphone
=======================
The metaphone() function can be used for spelling applications.This function returns the metaphone key of the string on success, or FALSE on failure.Its main use is when you are searching a genealogy database. check to see if a metaphone search is offered. It is also useful in making/searching family tree.
Given below is a simple code that calculates and compares two strings to find whether its metaphone codes are equivalent.

html code
==========
<html>
<body>
<form action="test.php" name="test" method="get">
Name1:<input type="text" name="name1" /><br />
Name2:<input type="text" name="name2" /><br />
<input type="submit" name="submit" value="compare" />
</form>

<!--php code begins here -->

<?php
if(isset($_GET['submit']))
{
$str1 = $_GET['name1'];
$str2 = $_GET['name2'];
$meta_one=metaphone($str1);
$meta_two=metaphone($str2);
echo
"metaphone code for ".$str1." is ". $meta_one;
echo
"<br />";
echo
"metaphone code for ".$str2." is ". $meta_two."<br>";
if(
$meta_one==$meta_two)
{
echo
"metaphone codes are matching";
}
else
{
echo
"metaphone codes are not matching";
}
}
?>

</body>
</html>

Metaphone  algorithm was developed by Lawrence Philips.

Lawrence Philips' RULES follow:

The 16 consonant sounds:
                                             |--- ZERO represents "th"
                                             |
      B  X  S  K  J  T  F  H  L  M  N  P  R  0  W  Y

Exceptions:

   Beginning of word: "ae-", "gn", "kn-", "pn-", "wr-"  ----> drop first letter
                      "Aebersold", "Gnagy", "Knuth", "Pniewski", "Wright"

   Beginning of word: "x"                                ----> change to "s"
                                      as in "Deng Xiaopeng"

   Beginning of word: "wh-"                              ----> change to "w"
                                      as in "Whalen"

Transformations:

   B ----> B      unless at the end of word after "m", as in "dumb", "McComb"

   C ----> X      (sh) if "-cia-" or "-ch-"
           S      if "-ci-", "-ce-", or "-cy-"
                  SILENT if "-sci-", "-sce-", or "-scy-"
           K      otherwise, including in "-sch-"

   D ----> J      if in "-dge-", "-dgy-", or "-dgi-"
           T      otherwise

   F ----> F

   G ---->        SILENT if in "-gh-" and not at end or before a vowel
                            in "-gn" or "-gned"
                            in "-dge-" etc., as in above rule
           J      if before "i", or "e", or "y" if not double "gg"
           K      otherwise

   H ---->        SILENT if after vowel and no vowel follows
                         or after "-ch-", "-sh-", "-ph-", "-th-", "-gh-"
           H      otherwise

   J ----> J

   K ---->        SILENT if after "c"
           K      otherwise

   L ----> L

   M ----> M

   N ----> N

   P ----> F      if before "h"
           P      otherwise

   Q ----> K

   R ----> R

   S ----> X      (sh) if before "h" or in "-sio-" or "-sia-"
           S      otherwise

   T ----> X      (sh) if "-tia-" or "-tio-"
           0      (th) if before "h"
                  silent if in "-tch-"
           T      otherwise

   V ----> F

   W ---->        SILENT if not followed by a vowel
           W      if followed by a vowel

   X ----> KS

   Y ---->        SILENT if not followed by a vowel
           Y      if followed by a vowel

   Z ----> S
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