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php-doc-ru/reference/intl/intlchar/isalnum.xml
2024-08-05 20:24:04 +03:00

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<?xml version="1.0" encoding="utf-8"?>
<!-- EN-Revision: e20e74073379710a4f6316734c42996c8fbf9beb Maintainer: rjhdby Status: ready -->
<!-- Reviewed: no -->
<refentry xml:id="intlchar.isalnum" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>IntlChar::isalnum</refname>
<refpurpose>Проверяет, относится ли кодовая точка к буквенно-цифровым символам</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis role="IntlChar">
<modifier>public</modifier> <modifier>static</modifier> <type class="union"><type>bool</type><type>null</type></type><methodname>IntlChar::isalnum</methodname>
<methodparam><type class="union"><type>int</type><type>string</type></type><parameter>codepoint</parameter></methodparam>
</methodsynopsis>
<para>
Метод определяет, относится ли кодовая точка к буквам или цифрам. Метод возвращает &true;
для символов общей категорий букв — L и десятичных цифр — Nd.
</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>
Метод возвращает &true;, если символ кодовой точки <parameter>codepoint</parameter>
буква или цифра, &false;, если нет.
Метод возвращает &null;, если возникла ошибка.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title>&intl.codepoint.example;</title>
<programlisting role="php">
<![CDATA[
<?php
var_dump(IntlChar::isalnum("A"));
var_dump(IntlChar::isalnum("1"));
var_dump(IntlChar::isalnum("\u{2603}"));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
bool(true)
bool(true)
bool(false)
]]>
</screen>
</example>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>IntlChar::isalpha</function></member>
<member><function>IntlChar::isdigit</function></member>
<member><function>ctype_alnum</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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