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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="intlchar.chardigitvalue" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>IntlChar::charDigitValue</refname>
<refpurpose>Get the decimal digit value of a decimal digit character</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis role="IntlChar">
<modifier>public</modifier> <modifier>static</modifier> <type class="union"><type>int</type><type>null</type></type><methodname>IntlChar::charDigitValue</methodname>
<methodparam><type class="union"><type>int</type><type>string</type></type><parameter>codepoint</parameter></methodparam>
</methodsynopsis>
<para>
Returns the decimal digit value of a decimal digit character.
</para>
<para>
Such characters have the general category "Nd" (decimal digit numbers) and a Numeric_Type of Decimal.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>codepoint</parameter></term>
<listitem>
&intl.codepoint.parameter;
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The decimal digit value of <parameter>codepoint</parameter>,
or <literal>-1</literal> if it is not a decimal digit character. Returns &null; on failure.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title>&intl.codepoint.example;</title>
<programlisting role="php">
<![CDATA[
<?php
var_dump(IntlChar::charDigitValue("1"));
var_dump(IntlChar::charDigitValue("\u{0662}"));
var_dump(IntlChar::charDigitValue("\u{0E53}"));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
int(1)
int(2)
int(3)
]]>
</screen>
</example>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>IntlChar::getNumericValue</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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