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151 lines
3.7 KiB
XML
151 lines
3.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 1fd69376c6c90066f086c99a32621f0b3fd47ba0 Maintainer: daijie Status: ready -->
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<!-- CREDITS: mowangjuanzi, Luffy -->
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<refentry xml:id="function.debug-print-backtrace" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>debug_print_backtrace</refname>
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<refpurpose>
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打印一条回溯。
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</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>void</type><methodname>debug_print_backtrace</methodname>
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<methodparam choice="opt"><type>int</type><parameter>options</parameter><initializer>0</initializer></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>limit</parameter><initializer>0</initializer></methodparam>
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</methodsynopsis>
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<para>
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<function>debug_print_backtrace</function> 打印了一条 PHP 回溯。它打印了函数调用、被 <function>include</function>d/<function>require</function>d 的文件和
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<function>eval</function> 的代码。
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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>options</parameter></term>
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<listitem>
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<para>
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这个参数是以下选项的位掩码：
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<table>
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<title><function>debug_print_backtrace</function> 选项</title>
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<tgroup cols="2">
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<tbody>
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<row>
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<entry>DEBUG_BACKTRACE_IGNORE_ARGS</entry>
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<entry>
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是否忽略 "args" 的索引，包括所有的 function/method 的参数，能够节省内存开销。
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</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>limit</parameter></term>
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<listitem>
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<para>
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这个参数能够用于限制返回堆栈帧的数量。
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默认为 (<parameter>limit</parameter>=<literal>0</literal>) ，返回所有的堆栈帧。
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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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&return.void;
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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><function>debug_print_backtrace</function> 范例</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// include.php file
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function a() {
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b();
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}
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function b() {
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c();
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}
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function c(){
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debug_print_backtrace();
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}
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a();
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?>
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]]>
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</programlisting>
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<programlisting role="php">
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<![CDATA[
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<?php
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// 文件 test.php
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// 这是你应该运行的文件
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include 'include.php';
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?>
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]]>
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</programlisting>
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&example.outputs.similar;
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<screen>
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<![CDATA[
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#0 c() called at [/tmp/include.php:10]
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#1 b() called at [/tmp/include.php:6]
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#2 a() called at [/tmp/include.php:17]
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#3 include(/tmp/include.php) called at [/tmp/test.php:3]
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]]>
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</screen>
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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>debug_backtrace</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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