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语法
integer checkdate (int %Month, int $Day, int $Year);
演示代码
输出结果如下
2/29/1900 is not valid
2/29/2000 is Valid
2/29/2100 is not valid
4/30/2008 is Valid
4/31/2008 is not valid
integer checkdate (int %Month, int $Day, int $Year);
演示代码
<?PHP echo "2/29/1900"; checkdate (2, 29, 1900)?print " is Valid":print " is not valid"; echo "\n"; echo "2/29/2000"; checkdate (2, 29, 2000)?print " is Valid":print " is not valid"; echo "\n"; echo "2/29/2100"; checkdate (2, 29, 2100)?print " is Valid":print " is not valid"; echo "\n"; echo "4/30/2008"; checkdate (4, 30, 2008)?print " is Valid":print " is not valid"; echo "\n"; echo "4/31/2008"; checkdate (4, 31, 2008)?print " is Valid":print " is not valid"; echo "\n"; ?>
输出结果如下
2/29/1900 is not valid
2/29/2000 is Valid
2/29/2100 is not valid
4/30/2008 is Valid
4/31/2008 is not valid