function.strftime.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Format a local time/date according to locale settings</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.mktime.html">mktime</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.strptime.html">strptime</a></div> <div class="up"><a href="ref.datetime.html">Date/Time Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.strftime" class="refentry"> <div class="refnamediv"> <h1 class="refname">strftime</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">strftime</span> — <span class="dc-title">Format a local time/date according to locale settings</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>strftime</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$format</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$timestamp</tt></span> ] )</div> <p class="para rdfs-comment"> Format a local time/date according to locale settings. Month and weekday names and other language dependent strings respect the current locale set with <a href="function.setlocale.html" class="function">setlocale()</a>. </p> <p class="para"> Not all conversion specifiers may be supported by your C library, in which case they will not be supported by PHP's <b>strftime()</b>. Additionally, not all platforms support negative timestamps, therefore your date range may be limited to no earlier than the Unix epoch. This means that e.g. %e, %T, %R and %D (there might be more) and dates prior to <i>Jan 1, 1970</i> will not work on Windows, some Linux distributions, and a few other operating systems. For Windows systems a complete overview of supported conversion specifiers can be found at this <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_crt_strftime.2c_.wcsftime.asp" class="link external">» <acronym title="Microsoft Developer Network">MSDN</acronym> website</a>. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">format</tt></i></span> <dd> <p class="para"> The following conversion specifiers are recognized in the format string: <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"> %a - abbreviated weekday name according to the current locale </span> </li> <li class="listitem"> <span class="simpara"> %A - full weekday name according to the current locale </span> </li> <li class="listitem"> <span class="simpara"> %b - abbreviated month name according to the current locale </span> </li> <li class="listitem"> <span class="simpara"> %B - full month name according to the current locale </span> </li> <li class="listitem"> <span class="simpara"> %c - preferred date and time representation for the current locale </span> </li> <li class="listitem"> <span class="simpara"> %C - century number (the year divided by 100 and truncated to an integer, range 00 to 99) </span> </li> <li class="listitem"> <span class="simpara"> %d - day of the month as a decimal number (range 01 to 31) </span> </li> <li class="listitem"> <span class="simpara"> %D - same as %m/%d/%y </span> </li> <li class="listitem"> <span class="simpara"> %e - day of the month as a decimal number, a single digit is preceded by a space (range ' 1' to '31') </span> </li> <li class="listitem"> <span class="simpara"> %g - like %G, but without the century. </span> </li> <li class="listitem"> <span class="simpara"> %G - The 4-digit year corresponding to the ISO week number (see %V). This has the same format and value as %Y, except that if the ISO week number belongs to the previous or next year, that year is used instead. </span> </li> <li class="listitem"> <span class="simpara"> %h - same as %b </span> </li> <li class="listitem"> <span class="simpara"> %H - hour as a decimal number using a 24-hour clock (range 00 to 23) </span> </li> <li class="listitem"> <span class="simpara"> %I - hour as a decimal number using a 12-hour clock (range 01 to 12) </span> </li> <li class="listitem"> <span class="simpara"> %j - day of the year as a decimal number (range 001 to 366) </span> </li> <li class="listitem"> <span class="simpara"> %m - month as a decimal number (range 01 to 12) </span> </li> <li class="listitem"> <span class="simpara"> %M - minute as a decimal number </span> </li> <li class="listitem"> <span class="simpara"> %n - newline character </span> </li> <li class="listitem"> <span class="simpara"> %p - either `am' or `pm' according to the given time value, or the corresponding strings for the current locale </span> </li> <li class="listitem"> <span class="simpara"> %r - time in a.m. and p.m. notation </span> </li> <li class="listitem"> <span class="simpara"> %R - time in 24 hour notation </span> </li> <li class="listitem"> <span class="simpara"> %S - second as a decimal number </span> </li> <li class="listitem"> <span class="simpara"> %t - tab character </span> </li> <li class="listitem"> <span class="simpara"> %T - current time, equal to %H:%M:%S </span> </li> <li class="listitem"> <span class="simpara"> %u - weekday as a decimal number [1,7], with 1 representing Monday </span> <div class="warning"><b class="warning">Warning</b> <p class="simpara"> Sun Solaris seems to start with Sunday as 1 although ISO 9889:1999 (the current C standard) clearly specifies that it should be Monday. </p> </div> </li> <li class="listitem"> <span class="simpara"> %U - week number of the current year as a decimal number,⌨️ 快捷键说明
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