<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >apd_set_session_trace</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="APD 高级 PHP 调试器" HREF="ref.apd.html"><LINK REL="PREVIOUS" TITLE="apd_set_pprof_trace" HREF="function.apd-set-pprof-trace.html"><LINK REL="NEXT" TITLE="apd_set_session" HREF="function.apd-set-session.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.apd-set-pprof-trace.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.apd-set-session.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.apd-set-session-trace" ></A >apd_set_session_trace</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN10129" ></A ><P > (no version information, might be only in CVS)</P >apd_set_session_trace -- Starts the session debugging</DIV ><DIV CLASS="refsect1" ><A NAME="AEN10132" ></A ><H2 >说明</H2 >void <B CLASS="methodname" >apd_set_session_trace</B > ( int debug_level [, string dump_directory] )<BR ></BR ><P > Starts debugging to <TT CLASS="filename" >apd_dump_{process_id}</TT > in the dump directory. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN10145" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" > debug_level</CODE ></DT ><DD ><P >An integer which is formed by adding together the <TT CLASS="literal" >XXX_TRACE</TT > constants.</P ><P >It is not recommended to use <TT CLASS="constant" ><B >MEMORY_TRACE</B ></TT >. It is very slow and does not appear to be accurate. <TT CLASS="constant" ><B >ASSIGNMENT_TRACE</B ></TT > is not implemented yet.</P ><P >To turn on all functional traces (TIMING, FUNCTIONS, ARGS SUMMARY (like strace -c)) use the value 99</P ></DD ><DT ><CODE CLASS="parameter" >dump_directory</CODE ></DT ><DD ><P > The directory in which the profile dump file is written. If not set, the apd.dumpdir setting from the <TT CLASS="filename" >php.ini</TT > file is used. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN10165" ></A ><H2 >返回值</H2 ><P > 无返回值。 </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN10168" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN10171" ></A ><P ><B >例 1. <B CLASS="function" >apd_set_session_trace()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />apd_set_session_trace</font><font color="#007700">(</font><font color="#0000BB">99</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.apd-set-pprof-trace.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.apd-set-session.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >apd_set_pprof_trace</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.apd.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >apd_set_session</TD ></TR ></TABLE ></DIV ></BODY ></HTML >