例子：把字符串時間轉換為timestamp

$strtime = "2000-02-12 16:20:35";
$array = explode("-",$strtime);
$year = $array[0];
$month = $array[1];
$array = explode(":",$array[2]);
$minute = $array[1];
$second = $array[2];
$array = explode(" ",$array[0]);
$day = $array[0];
$hour = $array[1];
$timestamp = mktime($hour,$minute,$second,$month,$day,$year);
echo "字符串時間：$strtime<br>";
echo "年：$year<br>";
echo "月：$month<br>";
echo "日：$day<br>";
echo "時：$hour<br>";
echo "分：$minute<br>";
echo "秒：$second<br>";
echo "轉換為timestamp：" . $timestamp . "<br>";
echo "從timestamp轉換回來：" . date("Y-m-d H:i:s",$timestamp) . "<br>";
?>