php code to get yesterday's and tomorrow's dates

The php code obtains yesterday's and tomorrow's dates. Friends in need can refer to it.

Sample code:

<?php
/**
*php日期操作
*site bbs.it-home.org
*/
echo "今天:".date("Y-m-d")."<br>";     
echo "昨天:".date("Y-m-d",strtotime("-1 day")), "<br>";     
echo "明天:".date("Y-m-d",strtotime("+1 day")). "<br>";  
echo "一周后:".date("Y-m-d",strtotime("+1 week")). "<br>";     
echo "一周零两天四小时两秒后:".date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")). "<br>";     
echo "下个星期四:".date("Y-m-d",strtotime("next Thursday")). "<br>";     
echo "上个周一:".date("Y-m-d",strtotime("last Monday"))."<br>";     
echo "一个月前:".date("Y-m-d",strtotime("last month"))."<br>";     
echo "一个月后:".date("Y-m-d",strtotime("+1 month"))."<br>";     
echo "十年后:".date("Y-m-d",strtotime("+10 year"))."<br>";    
?>

strtotime() function is to parse date and time description into Unix timestamp int strtotime ( string time [, int now] ) PHP day of the week get code:

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
//获取中文星期可以这样
$weekarray=array("日","一","二","三","四","五","六");
echo "星期".$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")];

Date function parameter table: 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 - day of the year; e.g.: "0" to "365" For more information on php date operations, please refer to: php Get current date and time detailed explanation Learn how to convert timestamp and date formats in php Learn PHP time and date functions through examples