<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Phar::offsetUnset</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="Phar::offsetSet" HREF="function.phar-offsetset.html"><LINK REL="NEXT" TITLE="Phar->setMetaData" HREF="function.phar-setmetadata.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.phar-offsetset.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.phar-setmetadata.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.phar-offsetunset" ></A >Phar::offsetUnset</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN179389" ></A ><P > (no version information, might be only in CVS)</P >Phar::offsetUnset -- remove a file from a phar</DIV ><DIV CLASS="refsect1" ><A NAME="AEN179392" ></A ><H2 >说明</H2 >bool <B CLASS="methodname" >Phar::offsetUnset</B > ( string offset )<BR ></BR ><P > This is an implementation of the <SPAN CLASS="interface" >ArrayAccess</SPAN > interface allowing direct manipulation of the contents of a Phar archive using array access brackets. offsetUnset is used for deleting an existing file, and is called by the <A HREF="function.unset.html" ><B CLASS="function" >unset()</B ></A > language construct. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN179403" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >offset</CODE ></DT ><DD ><P > The filename (relative path) to modify in a Phar. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN179412" ></A ><H2 >返回值</H2 ><P > 如果成功则返回 <TT CLASS="constant" ><B >TRUE</B ></TT >,失败则返回 <TT CLASS="constant" ><B >FALSE</B ></TT >。 </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN179417" ></A ><H2 >错误/异常</H2 ><P > if <A HREF="ref.phar.html#ini.phar.readonly" >phar.readonly</A > is <TT CLASS="literal" >1</TT >, <B CLASS="classname" >BadMethodCallException</B > is thrown, as modifying a Phar is only allowed when phar.readonly is set to <TT CLASS="literal" >0</TT >. Throws <B CLASS="classname" >PharException</B > if there are any problems flushing changes made to the Phar archive to disk. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN179425" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN179428" ></A ><P ><B >例 1. A <B CLASS="function" >Phar::offsetUnset()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$p </font><font color="#007700">= new </font><font color="#0000BB">Phar</font><font color="#007700">(</font><font color="#DD0000">'/path/to/my.phar'</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#DD0000">'my.phar'</font><font color="#007700">);<br /></font><font color="#0000BB">try </font><font color="#007700">{<br /> </font><font color="#FF8000">// deletes file.txt from my.phar by calling offsetUnset<br /> </font><font color="#007700">unset(</font><font color="#0000BB">$p</font><font color="#007700">[</font><font color="#DD0000">'file.txt'</font><font color="#007700">]);<br />} </font><font color="#0000BB">catch </font><font color="#007700">(</font><font color="#0000BB">Exception $e</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">'Could not delete file.txt: '</font><font color="#007700">, </font><font color="#0000BB">$e</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN179432" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.phar-offsetexists.html" ><B CLASS="function" >Phar::offsetExists()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.phar-offsetget.html" ><B CLASS="function" >Phar::offsetGet()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.phar-offsetset.html" ><B CLASS="function" >Phar::offsetSet()</B ></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.phar-offsetset.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.phar-setmetadata.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Phar::offsetSet</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" >Phar->setMetaData</TD ></TR ></TABLE ></DIV ></BODY ></HTML >