Detailed explanation of PHP date function parameters_PHP tutorial

time() in PHP gets a number. This number represents the total number of seconds since 1970-01-01. It’s strange, isn’t it?
But it’s convenient for calculation.

To find out the previous day The time is time()-60*60*24;
To find out the time of the previous year is time()*60*60*24*365

So how to convert this number into a date For the format, you need to use the date function



$t=time();
echo date("Y-m-d H:i:s",$t);

The format of the first parameter represents:
a - "am" or "pm"
A - "AM" or "PM"
d - day, two digits , if there are less than two digits, add zeros in front; such as: "01" to "31"
D - day of the week, three English letters; such as: "Fri"
F - month, full English name; such as: "January"
h - hours in 12-hour format; such as: "01" to "12"
H - hours in 24-hour format; such as: "00" to "23"
g - 12 hours Hours in the 24-hour system, do not add zeros if there are less than two digits; such as: "1" to 12"
G - Hours in the 24-hour system, do not add zeros if there are less than two digits; such as: "0" to "23"
i - Minutes; For example: "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, in English Full name; For example: "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 If there are less than two digits, zeros will not be added; such as: "1" to "12"
M - month, three English letters; such as: "Jan"
s - seconds; such as: "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; such as: "28" to "31"
U - total Seconds
w - Numeric day of the week, such as: "0" (Sunday) to "6" (Saturday)
Y - Year, four digits; such as: "1999"
y - Year , two digits; such as: "99"
z - the day of the year; such as: "0" to "365"
Other characters not listed above will be listed directly.

http://www.bkjia.com/PHPjc/317191.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/317191.htmlTechArticletime() gets a number in PHP. This number represents the total time from 1970-01-01 to now How many seconds has passed? It’s strange, but it’s easy to calculate. To find out the time of the previous day is time()-60*60*...