mirror of
https://github.com/php/doc-zh.git
synced 2026-03-25 15:42:15 +01:00
121 lines
2.7 KiB
XML
121 lines
2.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
|
||
<!-- $Revision$ -->
|
||
<!-- EN-Revision: eb557099ed1ddbc49c941f868d896991190b14f8 Maintainer: daijie Status: ready -->
|
||
<!-- CREDITS: mowangjuanzi -->
|
||
<refentry xml:id="reflectionclass.isinstance" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
|
||
<refnamediv>
|
||
<refname>ReflectionClass::isInstance</refname>
|
||
<refpurpose>检查类的实例</refpurpose>
|
||
</refnamediv>
|
||
|
||
<refsect1 role="description">
|
||
&reftitle.description;
|
||
<methodsynopsis role="ReflectionClass">
|
||
<modifier>public</modifier> <type>bool</type><methodname>ReflectionClass::isInstance</methodname>
|
||
<methodparam><type>object</type><parameter>object</parameter></methodparam>
|
||
</methodsynopsis>
|
||
<para>
|
||
检查对象是否为一个类的实例。
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1 role="parameters">
|
||
&reftitle.parameters;
|
||
<para>
|
||
<variablelist>
|
||
<varlistentry>
|
||
<term><parameter>object</parameter></term>
|
||
<listitem>
|
||
<para>
|
||
待比较的对象。
|
||
</para>
|
||
</listitem>
|
||
</varlistentry>
|
||
</variablelist>
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1 role="returnvalues">
|
||
&reftitle.returnvalues;
|
||
<para>
|
||
如果对象是该类的实例，则返回 &true;，否则返回 &false;。
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1 role="examples">
|
||
&reftitle.examples;
|
||
<para>
|
||
<example>
|
||
<title><methodname>ReflectionClass::isInstance</methodname> 相关示例</title>
|
||
<programlisting role="php">
|
||
<![CDATA[
|
||
<?php
|
||
|
||
class Foo {}
|
||
|
||
$object = new Foo();
|
||
|
||
$reflection = new ReflectionClass('Foo');
|
||
|
||
if ($reflection->isInstance($object)) {
|
||
echo "Yes\n";
|
||
}
|
||
|
||
// Equivalent to
|
||
if ($object instanceof Foo) {
|
||
echo "Yes\n";
|
||
}
|
||
|
||
// Equivalent to
|
||
if (is_a($object, 'Foo')) {
|
||
echo "Yes";
|
||
}
|
||
?>
|
||
]]>
|
||
</programlisting>
|
||
&example.outputs.similar;
|
||
<screen>
|
||
<![CDATA[
|
||
Yes
|
||
Yes
|
||
Yes
|
||
]]>
|
||
</screen>
|
||
</example>
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1 role="seealso">
|
||
&reftitle.seealso;
|
||
<para>
|
||
<simplelist>
|
||
<member><methodname>ReflectionClass::isInterface</methodname></member>
|
||
<member><link linkend="language.operators.type">类型运算符（instanceof）</link></member>
|
||
<member><link linkend="language.oop5.interfaces">对象接口</link></member>
|
||
<member><function>is_a</function></member>
|
||
</simplelist>
|
||
</para>
|
||
</refsect1>
|
||
|
||
</refentry>
|
||
<!-- Keep this comment at the end of the file
|
||
Local variables:
|
||
mode: sgml
|
||
sgml-omittag:t
|
||
sgml-shorttag:t
|
||
sgml-minimize-attributes:nil
|
||
sgml-always-quote-attributes:t
|
||
sgml-indent-step:1
|
||
sgml-indent-data:t
|
||
indent-tabs-mode:nil
|
||
sgml-parent-document:nil
|
||
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
|
||
sgml-exposed-tags:nil
|
||
sgml-local-catalogs:nil
|
||
sgml-local-ecat-files:nil
|
||
End:
|
||
vim600: syn=xml fen fdm=syntax fdl=2 si
|
||
vim: et tw=78 syn=sgml
|
||
vi: ts=1 sw=1
|
||
-->
|