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php date() is a function that gets the time and date. PHP can display the server date and time through the date() function. Next, let’s take a look at the details of the PHP data function.
php date() function detailed explanation
1, year-month-day
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy9668')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy9668> echo date('Y-m-j');2007-02-6 echo date('y-n-j');07-2-6 </td> </tr> </table>
Uppercase Y represents four digits of the year, while lowercase y represents the two digits of the year;
Lowercase m represents the number of the month (with leading), while lowercase n represents the number of the month without the leading.
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy3173')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy3173> echo date('Y-M-j');2007-Feb-6 echo date('Y-m-d');2007-02-06 </td> </tr> </table>
Capital M represents the 3 abbreviation characters of the month, while lowercase m represents the number of the month (with leading 0);
There is no uppercase J, only lowercase j represents the date of the month, without leading o ; If you need a leading month, use lowercase d.
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy5128')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy5128> echo date('Y-M-j');2007-Feb-6 echo date('Y-F-jS');2007-February-6th </td> </tr> </table>
Capital M represents the 3 abbreviated characters of the month, while capital F represents the full English character of the month. (No lowercase f)
Capital S represents the suffix of the date, such as "st", "nd", "rd" and "th", depending on the date number.
Summary:
can represent the year with uppercase Y and lowercase y;
can represent the month with uppercase F, uppercase M, lowercase m and lowercase n (two ways to represent characters and numbers respectively) );
can use lowercase d and lowercase j to represent the day, and uppercase S represents the suffix of the date.
2, hours: minutes: seconds
By default, the time displayed by PHP interpretation is "Greenwich Mean Time", which is 8 hours different from our local time.
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy9299')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy9299> echo date('g:i:s a');5:56:57 am echo date('h:i:s A');05:56:57 AM </td> </tr> </table>
The lowercase g indicates the 12-hour format without leading 0, while the lowercase h indicates the 12-hour format with leading 0.
When using the 12-hour clock, it is necessary to indicate morning and afternoon. Lowercase a represents lowercase "am" and "pm", and uppercase A represents uppercase "AM" and "PM".
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy1159')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy1159> echo date('G:i:s');14:02:26 </td> </tr> </table>
Capital G represents the number of hours in the 24-hour format, but without leading; use uppercase H to represent the number of hours in the 24-hour format with leading
Summary:
The letter g represents The hour does not have a leading character, and the letter h represents the hour with a leading character;
lowercase g and h represent the 12-hour format, and uppercase G and H represent the 24-hour format.
3, leap year, week, day
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy1723')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy1723> echo date('L');今年是否闰年：0 echo date('l');今天是：Tuesday echo date('D');今天是：Tue </td> </tr> </table>
Uppercase L indicates whether this year is a leap year, Boolean value, returns 1 if true, otherwise 0;
Lowercase l indicates the day of the week. The full English version (Tuesday);
uses a capital D to represent the 3-character abbreviation of the day of the week (Tue).
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy8851')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy8851> echo date('w');今天星期：2 echo date('W');本周是全年中的第 06 周 小写w表示星期几，数字形式表示大写W表示一年中的星期数 echo date('t');本月是 28 天 echo date('z');今天是今年的第 36 天 </td> </tr> </table>
Lowercase t represents the number of days in the current month
Lowercase z represents the day of the year today is
4, other time zone issues in the date function
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy2354')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy2354> echo date('T');UTC大写T表示服务器的时间区域设置 1echo date('I');0大写I表示判断当前是否为夏令时，为真返回1，否则为0 echo date('U');1170769424大写U表示从1970年1月1日到现在的总秒数，就是Unix时间纪元的UNIX时间戳。 echo date('c');2007-02-06T14:24:43 00:00小写c表示ISO8601日期，日期格式为YYYY-MM-DD，用字母T来间隔日期和时间，时间格式为HH:MM:SS，时区使用格林威治标准时间(GMT)的偏差来表示。 echo date('r');Tue, 06 Feb 2007 14:25:52 0000小写r表示RFC822日期。 </td> </tr> </table>
date("Y-m-d h:i:s") The total server time differs by several hours
The solution is as follows:
1. Use date_default_timezone_set() in the header of the page to set My default time zone is Beijing time
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy1492')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy1492>date_default_timezone_set('PRC'); echo date('Y-m-d H:i:s'); </td> </tr> </table>
The time is the same as the current time of the server!!
2. Modify php.ini.
Open php5.ini and search for date.timezone. Remove the semicolon = followed by XXX and restart the http service
(such as apache2 or iis, etc.).
About XXX, the available values in mainland China are: Asia/Chongqing, Asia/Shanghai,
Asia/Urumqi (in order Chongqing, Shanghai, Urumqi) Available values in Hong Kong and Taiwan: Asia/Macao,
Asia/Hong_Kong, Asia/Taipei (Macau, Hong Kong, Taipei in order) and Singapore:
Asia/Singapore foreigners seem to have missed Beijing. Other available values are: Etc/GMT- 8. Singapore,
Hongkong, PRC, what is PRC? PRC is the People's Republic of China -_- The above are the regions under GMT+8 compiled from
in the official PHP manual, there may be some omissions.
date function month and day with 0 problems
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onclick="doCopy('copy5683')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy5683> 一、带零 echo date('Y-m-d');2012-08-08 二、不带零 echo date('Y-n-j');2012-8-8 </td> </tr> </table></td> </tr> </table>
Related recommendations:
PHP date and time, PHP date time
Usage of date and time functions in PHP
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