本文实例讲述了php检查日期函数checkdate用法。分享给大家供大家参考。具体分析如下：

php中可以使用checkdate函数校验日期的正确性。

语法

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

演示代码

<?PHPecho "2/29/1900";checkdate (2, 29, 1900)?print " is Valid":print " is not valid";echo "";echo "2/29/2000";checkdate (2, 29, 2000)?print " is Valid":print " is not valid";echo "";echo "2/29/2100";checkdate (2, 29, 2100)?print " is Valid":print " is not valid";echo "";echo "4/30/2008";checkdate (4, 30, 2008)?print " is Valid":print " is not valid";echo "";echo "4/31/2008";checkdate (4, 31, 2008)?print " is Valid":print " is not valid";echo "";?>

输出结果如下

2/29/1900 is not valid2/29/2000 is Valid2/29/2100 is not valid4/30/2008 is Valid4/31/2008 is not valid

希望本文所述对大家的php程序设计有所帮助。