php检查日期函数checkdate用法实例_PHP教程

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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";

?>