PHP Check Date checkdate () function usage

This article mainly introduces the PHP check date function checkdate Usage, example analysis of PHP checkdate function of the use of skills, very practical value, the need for friends can refer to the next

This example describes the PHP check date function checkdate usage. Share to everyone for your reference. The specific analysis is as follows:

You can use the Checkdate function to verify the correctness of the date in PHP.

Grammar

Integer checkdate (int%month, int $Day, int $Year);

Demo Code

<? Phpecho "2/29/1900"; Checkdate (2, 1900)? print "is Valid":p rint "was not Valid"; echo "\ n"; echo "2/29/2000"; Checkdate ( 2, +)? print "is Valid":p rint "are not Valid"; echo "\ n"; echo "2/29/2100"; checkdate (2, 2100)? print "Is Valid": Print "is not valid"; echo "\ n"; echo "4/30/2008"; checkdate (4, +)? print "is valid":p rint "was not valid"; echo "\ n" echo "4/31/2008"; checkdate (4, +)? print "is Valid":p rint "was not Valid"; echo "\ n";? >

The output is as follows

2/29/1900 is isn't valid2/29/2000 is valid2/29/2100 are not valid4/30/2008 are valid4/31/2008 are not valid