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add an explanation and an example about problems in two digits years

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@162237 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Nuno Lopes 2004-06-28 15:04:02 +00:00
parent c87571bd71
commit 1a891a9b98
1 changed files with 31 additions and 4 deletions
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35
reference/datetime/functions/idate.xml
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@ -1,5 +1,5 @@
<?xml version='1.0' encoding='iso-8859-1'?>
<!-- $Revision: 1.2 $ -->
<!-- $Revision: 1.3 $ -->
<refentry id="function.idate">
<refnamediv>
<refname>idate</refname>
@ -17,14 +17,18 @@
<para>
Returns a string formatted according to the given format string using the
given integer <parameter>timestamp</parameter> or the current local time
if no timestamp is given. In otherwords, <parameter>timestamp</parameter>
if no timestamp is given. In other words, <parameter>timestamp</parameter>
is optional and defaults to the value of <function>time</function>.
</para>
<para>
Unlike the function <function>date</function>, <function>idate</function>
accepts just one char in the <parameter>format</parameter> parameter.
</para>
<para>
<table>
<title>The following characters are recognized in the
<parameter>format</parameter> parameter string</title>
<tgroup cols="3">
<tgroup cols="2">
<thead>
<row>
<entry><parameter>format</parameter> character</entry>
@ -90,7 +94,7 @@
</row>
<row>
<entry><literal>y</literal></entry>
<entry>Year (2 digits)</entry>
<entry>Year (1 or 2 digits - check note below)</entry>
</row>
<row>
<entry><literal>Y</literal></entry>
@ -108,6 +112,29 @@
</tgroup>
</table>
</para>
<note>
<para>
As <function>idate</function> returns always an <type>integer</type> and
as they can't start with a "0", <function>idate</function> may return less
digits then you would expect. See the example below:
</para>
</note>
<para>
<informalexample>
<programlisting role="php">
<![CDATA[
<?php
$timestamp = strtotime('1st January 2004'); //1072915200
// this prints the year in a two digit format
// however, as this would start with a "0", it
// only prints "4"
echo idate('y', $timestamp);
?>
]]>
</programlisting>
</informalexample>
</para>
<para>
See also <function>date</function> and
<function>time</function>.