<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >memory_get_peak_usage</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="PHP Options&Information" HREF="ref.info.html"><LINK REL="PREVIOUS" TITLE="main" HREF="function.main.html"><LINK REL="NEXT" TITLE="memory_get_usage" HREF="function.memory-get-usage.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.main.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.memory-get-usage.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.memory-get-peak-usage" ></A >memory_get_peak_usage</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN181739" ></A ><P > (no version information, might be only in CVS)</P >memory_get_peak_usage -- Returns the peak of memory allocated by PHP</DIV ><DIV CLASS="refsect1" ><A NAME="AEN181742" ></A ><H2 >说明</H2 >int <B CLASS="methodname" >memory_get_peak_usage</B > ( [bool real_usage] )<BR ></BR ><P > Returns the peak of memory, in bytes, that's been allocated to your PHP script. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN181751" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >real_usage</CODE ></DT ><DD ><P > Set this to <TT CLASS="constant" ><B >TRUE</B ></TT > to get the real size of memory allocated from system. If not set or <TT CLASS="constant" ><B >FALSE</B ></TT > only the memory used by <TT CLASS="literal" >emalloc()</TT > is reported. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN181763" ></A ><H2 >返回值</H2 ><P > Returns the memory peak in bytes. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN181766" ></A ><H2 >更新日志</H2 ><P > <DIV CLASS="informaltable" ><P ></P ><A NAME="AEN181769" ></A ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><THEAD ><TR ><TH >版本</TH ><TH >说明</TH ></TR ></THEAD ><TBODY ><TR ><TD >5.2.1</TD ><TD > Compiling with <A HREF="ini.core.html#ini.memory-limit" >--enable-memory-limit</A > is no longer required for this function to exist. </TD ></TR ><TR ><TD >5.2.0</TD ><TD > <CODE CLASS="parameter" >real_usage</CODE > was added. </TD ></TR ></TBODY ></TABLE ><P ></P ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN181784" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.memory-get-usage.html" ><B CLASS="function" >memory_get_usage()</B ></A ></TD ></TR ><TR ><TD ><A HREF="ini.core.html#ini.memory-limit" >memory_limit</A ></TD ></TR ></TBODY ></TABLE ><P ></P > </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.main.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.memory-get-usage.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >main</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.info.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >memory_get_usage</TD ></TR ></TABLE ></DIV ></BODY ></HTML >