php檢查日期函數checkdate使用示例

語法

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

演示代碼

<?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";
?></pre> 

 輸出結果如下

 

 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