Several ways to get the day of the week in php and how to use the date function

I will introduce to you several ways to get the day of the week in php and the usage of php date function date(). Friends in need may wish to refer to it.

The code is as follows:

<?php
/**
 * php 获取星期几的代码
 * http://bbs.it-home.org
*/
date("l");
//data就可以获取英文的星期比如Sunday
date("w");
//这个可以获取数字星期比如123，注意0是星期日

//获取中文星期几：
$weekarray=array("日","一","二","三","四","五","六");
//先定义一个数组
echo "星期".$weekarray[date("w")];

//获取指定日期是：
$weekarray=array("日","一","二","三","四","五","六");
echo "星期".$weekarray[date("w","2011-11-11")];
?>

Attached, an introduction to the date function. a - "am" or "pm" A - "AM" or "PM" d - day, two digits, if there are less than two digits, add zeros in front; for example: "01" to "31" D - Day of the week, three English letters; e.g.: "Fri" F - month, full English name; such as: "January" h - hour in 12-hour clock; e.g.: "01" to "12" H - hour in 24-hour format; e.g.: "00" to "23" g - hour in 12-hour format, no zeros are added if there are less than two digits; for example: "1" to 12" G - hour in 24-hour format, no zeros are added if there are less than two digits; for example: "0" to "23" i - minute; e.g.: "00" to "59" j - day, two digits, if there are less than two digits, do not add zero; for example: "1" to "31" l - day of the week, full English name; such as: "Friday" m - month, two digits, if there are less than two digits, add zeros in front; for example: "01" to "12" n - month, two digits, if there are less than two digits, no zero will be added; for example: "1" to "12" M - month, three English letters; such as: "Jan" s - seconds; e.g.: "00" to "59" S - add an English ordinal number at the end of the word, two English letters; such as: "th", "nd" t - the number of days in the specified month; for example: "28" to "31" U - Total seconds w - Numeric day of the week, such as: "0" (Sunday) to "6" (Saturday) Y - year, four digits; for example: "1999" y - year, two digits; such as: "99" z - the day of the year; such as: "0" to "365"