Detailed explanation of output formatted date and time examples-PHP Tutorial-php.cn

Detailed explanation of output formatted date and time examples

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Release： 2023-03-07 14:24:01

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We have already understood the syntax of the date() function when we explained the use of the date() function to obtain the current date and time . Here we focus on the formatting of the parameter format of the date() function. options.

The formatting options of parameter format are as follows:

##A Capitalized am value and afternoon value, return value am or pmBSwatch Internet standard time, return value (000 to 999) dThe day of the month, two digits with leading 0 (from 01 to 31) D Day of the week, text format, 3 letters, return value Mon~SunFMonth, complete text format, return value January~DecemberhHour, 12-hour format, no leading zero, return value 1~12##Hi Ijl (lowercase L) LmMnOr##sSeconds , with leading zeros, return value 00~59

format parameter	Description
a	lowercase morning value and afternoon value, return value am Or pm






Hour, 24-hour format, no leading zero, return value 0~23
The number of minutes with leading zeros, the return value is 0~59
Determine whether it is daylight saving time, the return value if it is daylight saving time is 1, otherwise 0
The day of the month, no leading zero, return value 1~31
Week number, complete text format, return value Sunday~Saturday
Determine whether it is a running year , the return value is 1 if it is a leap year, otherwise it is 0
The month represented by the number, with leading 0, the return value is 01~12
The month represented by the 3-letter abbreviation, the return value Jan~Dec
represents the number Month, no leading zero, return value 1~12
The number of hours difference from Greenwich Mean Time, such as +0200
Date in RFC822 format, such as Thu, 21Dec 2000 16:01:07+0200

S	每月天数后面的英文后缀，两个字符，如st，nd，rd或者th，可以和j一起使用
t	指定月份所应有的天数，28~31
T	本机所在的时区
U	从Unix 纪元（January 1 1970 00:00:00 GMT）开始至今的秒数
w	星期中的第几天，数字表示，返回值0~6
W	IOS-8601格式年份中的第几周，每周从星期一开始
y	两位数字表示的年份，返回值如88或08
Y	4位完整数字表示的年份，返回值如 2017,2018
z	年份中的第几天，返回值0~366
Z	以秒为单位的时区偏移量。UTC 以西时区的偏移量为负数（-43200 到 50400）

实例

date()函数可以对format选项随意地组合。在本例中，既有单独输出一个参数的情况，也有输出多个参数的情况，最好还输出转义字符，实例代码如下：

<?php
header("Content-type:text/html;charset=utf-8");    //设置编码

echo "输出单个变量：".date("Y")."-".date("m")."-".date("d")."<br/>";

echo "输出组合变量".date("Y-m-d")."<br/>";

echo "输出更详细的日期和时间".date("Y-m-d H:i:s")."<br/>";

echo "还可以更详细".date("l Y-m-d H:i:s T")."<br/>";

echo "输出转义字符：".date("\T\o\d\a\y \i\s  \\t\h\e jS \o\f \y\\e\a\\r");
?>

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运行结果如下图：

Detailed explanation of output formatted date and time examples

上面就是我们对date()函数format参数的格式化实例，下一节，我们讲解“将日期和时间解析为UNIX”时间戳。

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