How to convert timestamp to time format in php

In PHP, the timestamp can be converted into time format through the "date()" function. The conversion syntax is "date(format, timestamp)", and the format parameter specifies the format of the timestamp.

The operating environment of this article: Windows7 system, PHP7.1 version, DELL G3 computer

How does php convert timestamp to time? Format?

PHP timestamp and date conversion

Timestamp to date date()

date(format,timestamp)

format required. Specifies the format of the timestamp.

timestamp Optional. Specify timestamp. The default is the current time and date

For example: date('Y-m-d H:i:s', specific timestamp)

Y: Year (four digits) in uppercase letters

m: Month (two digits, add 0 if the first digit is missing) Lowercase

d: Day (two digits, add 0 if the first digit is missing) Lowercase

H: hour with a leading zero 24 hours Hour format

h: hour 12 hours with leading zero Hour format

i: minute with leading zero

s: second with leading zero (00 -59)

a: Lowercase noon and afternoon (am or pm)

The distinction between upper and lower case is very important, such as the following example:

var_dump(date('Y-m-d H:i:s', 1502204401)); //H 24小时制 2017-08-08 23:00:01 
var_dump(date('Y-m-d h:i:s', 1502204401)); //h 12小时制 2017-08-08 11:00:01

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