<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >PharFileInfo->getCRC32</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="Phar archive stream and classes" HREF="ref.phar.html"><LINK REL="PREVIOUS" TITLE="PharFileInfo->getCompressedSize" HREF="function.pharfileinfo-getcompressedsize.html"><LINK REL="NEXT" TITLE="PharFileInfo->getMetaData" HREF="function.pharfileinfo-getmetadata.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.pharfileinfo-getcompressedsize.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.pharfileinfo-getmetadata.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.pharfileinfo-getcrc32" ></A >PharFileInfo->getCRC32</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN179772" ></A ><P > (no version information, might be only in CVS)</P >PharFileInfo->getCRC32 -- Returns CRC32 code or throws an exception if not CRC checked</DIV ><DIV CLASS="refsect1" ><A NAME="AEN179775" ></A ><H2 >说明</H2 >int <B CLASS="methodname" >PharFileInfo->getCRC32</B > ( void )<BR ></BR ><P > This returns the <A HREF="function.crc32.html" ><B CLASS="function" >crc32()</B ></A > checksum of the file within the Phar archive. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN179783" ></A ><H2 >返回值</H2 ><P > The <A HREF="function.crc32.html" ><B CLASS="function" >crc32()</B ></A > checksum of the file within the Phar archive. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN179787" ></A ><H2 >错误/异常</H2 ><P > Throws <B CLASS="classname" >BadMethodCallException</B > if the file has not yet had its CRC32 verified. This should be impossible with normal use, as the CRC is verified upon opening the file for reading or writing. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN179791" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN179794" ></A ><P ><B >例 1. A <B CLASS="function" >PharFileInfo->getCRC32()</B > example</B ></P ><P > </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />try </font><font color="#007700">{<br /> </font><font color="#0000BB">$p </font><font color="#007700">= new </font><font color="#0000BB">Phar</font><font color="#007700">(</font><font color="#DD0000">'/path/to/my.phar'</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#DD0000">'my.phar'</font><font color="#007700">);<br /> </font><font color="#0000BB">$p</font><font color="#007700">[</font><font color="#DD0000">'myfile.txt'</font><font color="#007700">] = </font><font color="#DD0000">'hi'</font><font color="#007700">;<br /> </font><font color="#0000BB">$file </font><font color="#007700">= </font><font color="#0000BB">$p</font><font color="#007700">[</font><font color="#DD0000">'myfile.txt'</font><font color="#007700">];<br /> echo </font><font color="#0000BB">$file</font><font color="#007700">-></font><font color="#0000BB">getCRC32</font><font color="#007700">();<br />} </font><font color="#0000BB">catch </font><font color="#007700">(</font><font color="#0000BB">Exception $e</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">'Write operations on my.phar.phar failed: '</font><font color="#007700">, </font><font color="#0000BB">$e</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P >上例将输出:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >3633523372</PRE ></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.pharfileinfo-getcompressedsize.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.pharfileinfo-getmetadata.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >PharFileInfo->getCompressedSize</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.phar.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >PharFileInfo->getMetaData</TD ></TR ></TABLE ></DIV ></BODY ></HTML >