Share the method of outputting time by date() function in PHP

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(&#39;copy9668&#39;)">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(&#39;Y-m-j&#39;);2007-02-6
echo date(&#39;y-n-j&#39;);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(&#39;copy3173&#39;)">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(&#39;Y-M-j&#39;);2007-Feb-6
echo date(&#39;Y-m-d&#39;);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(&#39;copy5128&#39;)">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(&#39;Y-M-j&#39;);2007-Feb-6
echo date(&#39;Y-F-jS&#39;);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(&#39;copy9299&#39;)">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(&#39;g:i:s a&#39;);5:56:57 am
echo date(&#39;h:i:s A&#39;);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(&#39;copy1159&#39;)">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(&#39;G:i:s&#39;);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(&#39;copy1723&#39;)">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(&#39;L&#39;);今年是否闰年：0
echo date(&#39;l&#39;);今天是：Tuesday
echo date(&#39;D&#39;);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(&#39;copy8851&#39;)">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(&#39;w&#39;);今天星期：2
echo date(&#39;W&#39;);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(&#39;t&#39;);本月是 28 天
echo date(&#39;z&#39;);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(&#39;copy2354&#39;)">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(&#39;T&#39;);UTC大写T表示服务器的时间区域设置
1echo date(&#39;I&#39;);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(&#39;U&#39;);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(&#39;c&#39;);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(&#39;r&#39;);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(&#39;copy1492&#39;)">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(&#39;PRC&#39;);
echo date(&#39;Y-m-d H:i:s&#39;);
</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(&#39;copy5683&#39;)">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(&#39;Y-m-d&#39;);2012-08-08
二、不带零
echo date(&#39;Y-n-j&#39;);2012-8-8
</td> </tr> </table></td> </tr> </table>

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PHP date and time, PHP date time

Usage of date and time functions in PHP

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