Summary of common methods for displaying time in PHP

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Summary of common methods of displaying time in php

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Summary of common methods for displaying time in PHP_PHP tutorial

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Jul 13, 2016 am 09:51 AM

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Summary of common methods of displaying time in php

This article describes the common methods of displaying time in php. Share it with everyone for your reference. The specific analysis is as follows:

1. PHP function Date() gets the current time

The code is as follows:

Display format: year-month-day hour:minute:second

Relevant parameters:

a: "am" or "pm"

A: "AM" or "PM"

d: day, two digits, if there are less than two digits, add zero 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: Hour in 12-hour format, such as: "01" to "12"

H: hour in 24-hour format, such as: "00" to "23"

g: hour in 12-hour format, no zeros are added if there are less than two digits, such as: "1" to 12"

G: hour in 24-hour format, no zeros are added if there are less than two digits, such as: "0" to "23"

i: minutes, such as: "00" to "59"

j: day, two digits, if there are less than two digits, do not add zeros, such as: "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; such as: "01" to "12"

n: month, two digits, if there are less than two digits, no zero will 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 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"

2. Solution to the problem of Date() function in PHP5 obtaining a time difference of 8 hours

Just add a definition before the output time: date_default_timezone_set("PRC");, code:

date_default_timezone_set("PRC");

echo date("Y-m-d H:i:s");

date_default_timezone_set("PRC");

echo date("Y-m-d H:i:s");

echo (strtotime("2008-08-24 00:00:00")-strtotime("2008-08-08 00:00:00"))/86400;

3. PHP function to obtain file creation time and last modification time

Filemtime(string filename): Returns the time when the file was last modified, and returns false when an error occurs. The time is returned as a Unix timestamp, which can be used with Date().

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