XVII. Date and Time Functions
Introduction
These functions allow you to get the date and time from the
server where your PHP scripts are running. You can use these
functions to format the date and time in many different ways.
Note: Please keep in mind that these functions are dependent
on the locale settings of your server. Make sure to take
daylight saving time and leap years into consideration when
working with these functions.
Requirements
No external libraries are needed to build this extension.
Installation
There is no installation needed to use these functions;
they are part of the PHP core.
Runtime Configuration
This extension has no configuration directives defined in
php.ini.
Resource Types
This extension has no resource types defined.
Predefined Constants
This extension has no constants defined.
Table of Contents
checkdate -- Validate a Gregorian date
date -- Format a local time/date
getdate -- Get date/time information
gettimeofday -- Get current time
gmdate -- Format a GMT/UTC date/time
gmmktime -- Get Unix timestamp for a GMT date
gmstrftime -- Format a GMT/UTC time/date according to locale
settings
localtime -- Get the local time
microtime -- Return current Unix timestamp with microseconds
mktime -- Get Unix timestamp for a date
strftime -- Format a local time/date according to locale
settings
strtotime -- Parse about any English textual datetime description
into a Unix timestamp
time -- Return current Unix timestamp
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