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40 lines
1.2 KiB
XML
40 lines
1.2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- EN-Revision: 16934048f79c6e117cd16a23c09c1b2ea502e284 Maintainer: mowangjuanzi Status: ready -->
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<sect1 xml:id="language.operators.string">
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<title>字符串运算符</title>
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<titleabbrev>字符串</titleabbrev>
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<simpara>
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有两个字符串（<type>string</type>）运算符。第一个是连接运算符（“.”），它返回其左右参数连接后的字符串。第二个是连接赋值运算符（“<literal>.=</literal>”），它将右边参数附加到左边的参数之后。更多信息见<link
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linkend="language.operators.assignment">赋值运算符</link>。
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</simpara>
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<para>
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<example>
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<title>字符串连接</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$a = "Hello ";
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$b = $a . "World!"; // 现在 $b 包含 "Hello World!"
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var_dump($b);
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$a = "Hello ";
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$a .= "World!"; // 现在 $a 包含 "Hello World!"
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var_dump($a);
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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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<sect2 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><link linkend="language.types.string">字符串类型</link></member>
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<member><link linkend="ref.strings">字符串函数</link></member>
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</simplelist>
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</para>
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</sect2>
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</sect1>
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