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📄 ch08_223.htm

📁 by Randal L. Schwartz and Tom Phoenix ISBN 0-596-00132-0 Third Edition, published July 2001. (See
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<html><head><title>Time::gmtime (Perl in a Nutshell, 2nd Edition)</title><link rel="stylesheet" type="text/css" href="../style/style1.css" /><meta name="DC.Creator" content="Stephen Spainhour" /><meta name="DC.Format" content="text/xml" scheme="MIME" /><meta name="DC.Language" content="en-US" /><meta name="DC.Publisher" content="O'Reilly &amp; Associates, Inc." /><meta name="DC.Source" scheme="ISBN" content="0596002416L" /><meta name="DC.Subject.Keyword" content="stuff" /><meta name="DC.Title" content="Perl in a Nutshell, 2nd Edition" /><meta name="DC.Type" content="Text.Monograph" /></head><body bgcolor="#ffffff"><img src="gifs/smbanner.gif" usemap="#banner-map" border="0" alt="Book Home" /><map name="banner-map"><area shape="rect" coords="1,-2,616,66" href="index.htm" alt="Java and XSLT" /><area shape="rect" coords="629,-11,726,25" href="jobjects/fsearch.htm" alt="Search this book" /></map><div class="navbar"><table width="684" border="0"><tr><td align="left" valign="top" width="228"><a href="ch08_222.htm"><img src="../gifs/txtpreva.gif" alt="Previous" border="0" /></a></td><td align="center" valign="top" width="228" /><td align="right" valign="top" width="228"><a href="ch08_224.htm"><img src="../gifs/txtnexta.gif" alt="Next" border="0" /></a></td></tr></table></div><h2 class="sect1">8.223. Time::gmtime</h2><p><a name="INDEX-1592" /><a name="INDEX-1593" />Replaces Perl's core<tt class="literal">gmtime</tt> function with a version that returnsTime::tm objects. Exports two functions.</p><div class="refentry"><table width="515" border="0" cellpadding="5"><tr><td align="left"><font size="+1"><b>gmctime</b></font></td><td align="right"><i></i></td></tr></table><hr width="515" size="3" noshade="true" align="left" color="black" /><pre>$<em class="replaceable">gmc</em> = gmctime(  )</pre><p>Overrides the core <tt class="literal">gmtime</tt> function in scalarcontext; returns a string with the date and time:</p><blockquote><pre class="code">use Time::gmtime;$gmc = gmctime( );print $gmc;</pre></blockquote><p>Then the output of the <tt class="literal">print</tt> command looks like: </p><blockquote><pre class="code">Thu Apr 9 18:15:06 1998</pre></blockquote></div><div class="refentry"><table width="515" border="0" cellpadding="5"><tr><td align="left"><font size="+1"><b>gmtime</b></font></td><td align="right"><i></i></td></tr></table><hr width="515" size="3" noshade="true" align="left" color="black" /><pre>$<em class="replaceable">gm</em> = gmtime(  )</pre><p>Overrides the core <tt class="literal">gmtime</tt> function. The Time::tmobject returned has methods with the same names as the structurefields they return. That is, to return the field<tt class="literal">mon</tt>, use the <tt class="literal">mon</tt> method:</p><blockquote><pre class="code">use Time::gmtime;$gm = gmtime( );print $gm-&gt;mon;</pre></blockquote><p>The field names (and therefore the method names) are the same as thenames of the fields in the <em class="emphasis">tm</em> structure in the Cfile <em class="emphasis">time.h</em>: <tt class="literal">sec</tt>,<tt class="literal">min</tt>, <tt class="literal">hour</tt>,<tt class="literal">mday</tt>, <tt class="literal">mon</tt>,<tt class="literal">year</tt>, <tt class="literal">wday</tt>,<tt class="literal">yday</tt>, and <tt class="literal">isdst</tt>. You can accessthe fields either with the methods or by importing the fields intoyour namespace with the :FIELDS import tag and prepending<tt class="literal">tm_</tt> to the method name (for example,<tt class="literal">$tm_mon</tt>).</p></div><hr width="684" align="left" /><div class="navbar"><table width="684" border="0"><tr><td align="left" valign="top" width="228"><a href="ch08_222.htm"><img src="../gifs/txtpreva.gif" alt="Previous" border="0" /></a></td><td align="center" valign="top" width="228"><a href="index.htm"><img src="../gifs/txthome.gif" alt="Home" border="0" /></a></td><td align="right" valign="top" width="228"><a href="ch08_224.htm"><img src="../gifs/txtnexta.gif" alt="Next" border="0" /></a></td></tr><tr><td align="left" valign="top" width="228">8.222. Tie::SubstrHash</td><td align="center" valign="top" width="228"><a href="index/index.htm"><img src="../gifs/index.gif" alt="Book Index" border="0" /></a></td><td align="right" valign="top" width="228">8.224. Time::HiRes</td></tr></table></div><hr width="684" align="left" /><img src="../gifs/navbar.gif" usemap="#library-map" border="0" alt="Library Navigation Links" /><p><p><font size="-1"><a href="copyrght.htm">Copyright &copy; 2002</a> O'Reilly &amp; Associates. All rights reserved.</font></p><map name="library-map"><area shape="rect" coords="1,0,85,94" href="../index.htm"><area shape="rect" coords="86,1,178,103" href="../lwp/index.htm"><area shape="rect" coords="180,0,265,103" href="../lperl/index.htm"><area shape="rect" coords="267,0,353,105" href="../perlnut/index.htm"><area shape="rect" coords="354,1,446,115" href="../prog/index.htm"><area shape="rect" coords="448,0,526,132" href="../tk/index.htm"><area shape="rect" coords="528,1,615,119" href="../cookbook/index.htm"><area shape="rect" coords="617,0,690,135" href="../pxml/index.htm"></map></body></html>

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