PHP Check Date function checkdate Usage example _php tips

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

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

Grammar

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

Demo Code

? PHP
echo "2/29/1900";
Checkdate (2, 1900)? print "is Valid":p rint "are not Valid";
echo "\ n";
echo "2/29/2000";
Checkdate (2, a)? print "is Valid":p rint ' is not Valid ';
echo "\ n";
echo "2/29/2100";
Checkdate (2, 2100)? print "is Valid":p rint "are not Valid";
echo "\ n";
echo "4/30/2008";
Checkdate (4, 2008)? print "is Valid":p rint "are not Valid";
echo "\ n";
echo "4/31/2008";
Checkdate (4, 2008)? print "is Valid":p rint "are not Valid";
echo "\ n";
? >

The output is as follows

2/29/1900 is isn't valid
2/29/2000 is valid
2/29/2100 isn't valid 4/30/2008 is
valid
4/31/2008 are not V Alid

I hope this article will help you with your PHP program design.