XVIII. Date and Time functions

Introduction

You can use this functions to handle date and time. This functions allow you to get date and time from the server where PHP is running on. You can use this functions to format the output of date and time in many different ways.

Note: Please keep in mind that this functions are depending on the locale settings of your server. Especially consider daylight saving time settings and leap years.

Requirements

These functions are available as part of the standard module, which is always available.

Installation

There is no installation needed to use these functions, they are part of the PHP core.

Runtime Configuration

This extension does not define any configuration directives.

Resource Types

This extension does not define any resource types.

Predefined Constants

This extension does not define any constants.

Table of Contents
checkdate -- Validate a gregorian date/time
date -- Format a local time/date
getdate -- Get date/time information
gettimeofday -- Get current time
gmdate -- Format a GMT/CUT date/time
gmmktime -- Get UNIX timestamp for a GMT date
gmstrftime --  Format a GMT/CUT 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