mirror of
https://github.com/sigmasternchen/php-doc-en
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96c9d88bad
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@297028 c90b9560-bf6c-de11-be94-00142212c4b1
108 lines
2.8 KiB
XML
108 lines
2.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml: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 role="description">
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&reftitle.description;
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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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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>str</parameter></term>
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<listitem>
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<para>
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The input string.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns the soundex key as a string.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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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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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>levenshtein</function></member>
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<member><function>metaphone</function></member>
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<member><function>similar_text</function></member>
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</simplelist>
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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:"~/.phpdoc/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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