PHP mktime

PHP mktime

<?php
$day1 = mktime(0, 0, 0, 1, 1, 1970);
echo $day1."<br>";
echo date('Y-m-d',$day1) ."<br>";
$day2 = mktime(0, 0, 0, 1, 28, 2010);
echo $day2."<br>";
echo date('Y-m-j',$day2) ."<br>";
date_default_timezone_set('Asia/Taipei');
echo "2010年 10月 10日 是禮拜幾".date ("l", mktime(0,0,0,10,10,2010));
$tomorrow = mktime (0,0,0,date("m") ,date("d")+1,date("Y")); 
$lastmonth = mktime (0,0,0,date("m")-1,date("d"), date("Y")); 
$nextyear = mktime (0,0,0,date("m"), date("d"), date("Y")+1); 
echo "<br>明天是：".date("Y-m-j",$tomorrow); 
echo "<br>上個月是：".date("Y-m-j",$lastmonth); 
echo "<br>明年是：".date("Y-m-j",$nextyear); 
?>