php检查日期函数checkdate使用示例

语法

integer checkdate (int %Month, int $Day, int $Year);

演示代码

2. echo "2/29/1900";
3. checkdate (2, 29, 1900)?print " is Valid":print " is not valid";
4. echo "\n";
6. echo "2/29/2000";
7. checkdate (2, 29, 2000)?print " is Valid":print " is not valid";
8. echo "\n";
10. echo "2/29/2100";
11. checkdate (2, 29, 2100)?print " is Valid":print " is not valid";
12. echo "\n";
14. echo "4/30/2008";
15. checkdate (4, 30, 2008)?print " is Valid":print " is not valid";
16. echo "\n";
18. echo "4/31/2008";
19. checkdate (4, 31, 2008)?print " is Valid":print " is not valid";
20. echo "\n";
22. ?>

复制代码

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

php, checkdate