mirror of
https://github.com/sigmasternchen/php-doc-en
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bcecf5d323
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@129420 c90b9560-bf6c-de11-be94-00142212c4b1
73 lines
2.2 KiB
XML
73 lines
2.2 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.3 $ -->
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<!-- splitted from ./en/functions/strings.xml, last change in rev 1.2 -->
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<refentry id="function.soundex">
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<refnamediv>
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<refname>soundex</refname>
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<refpurpose>Calculate the soundex key of a string</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>string</type><methodname>soundex</methodname>
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<methodparam><type>string</type><parameter>str</parameter></methodparam>
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</methodsynopsis>
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<para>
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Calculates the soundex key of <parameter>str</parameter>.
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</para>
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<para>
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Soundex keys have the property that words pronounced similarly
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produce the same soundex key, and can thus be used to simplify
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searches in databases where you know the pronunciation but not
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the spelling. This soundex function returns a string 4 characters
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long, starting with a letter.
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</para>
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<para>
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This particular soundex function is one described by Donald Knuth
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in "The Art Of Computer Programming, vol. 3: Sorting And
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Searching", Addison-Wesley (1973), pp. 391-392.
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</para>
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<para>
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<example>
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<title>Soundex Examples</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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soundex("Euler") == soundex("Ellery") == 'E460';
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soundex("Gauss") == soundex("Ghosh") == 'G200';
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soundex("Hilbert") == soundex("Heilbronn") == 'H416';
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soundex("Knuth") == soundex("Kant") == 'K530';
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soundex("Lloyd") == soundex("Ladd") == 'L300';
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soundex("Lukasiewicz") == soundex("Lissajous") == 'L222';
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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See also <function>levenshtein</function>,
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<function>metaphone</function>, and <function>similar_text</function>.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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