Date and time Class , objects and function in PHPThe object oriented features are added from PHP 5 onwards. So several date functions can be used but many such objects were supported from PHP5.3 onwards so check your server PHP version to know before using all these features.
How to know PHP version installed in your server ?
Date & time functions are here
How to display current time stamp value in a page? By using time stamp we can display the date and time by formatting the time stamp output. Learn how to set the time zone of the server or at the page level.
Validating date and finding date parts from a date string
We need to check the user entered date value in any web page before using in our script. For this php built in date function checkdate can be used. This function returns true if the date is a valid date. This function also takes care of leap years and other date restrictions.
Previous dates or advance dates from today
How to get date parts to display previous or advance dates by calculating from the present date.
Drop down list box for date month selection
It is easy for a user to select month, date etc from a drop down list box than entering them in a text box. Here the data entered by the user will be under control as from a given options the user has to select one. Date Difference
By using mktime function we can get the difference in day or month or year between two dates.
Date value from string variable
From a string variable consist of months or days we can use array split command to get the date parts.