标签：style class blog c code java
----- 017-datetime.php -----
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta http-equiv="content-type" content="text/html; charset=utf-8"> 5 <title>日期与时间</title> 6 </head> 7 <body> 8 <h3>日期与时间</h3> 9 <pre> 10 <?php 11 $start_time = substr(microtime(), 0, 10); 12 echo "2014年2月28存在否？", checkdate(2, 28, 2014), "\n"; 13 echo "2014年2月29存在否？", checkdate(2, 29, 2014), "\n"; 14 echo "以数组形式返回当前时间：\n"; 15 print_r(@getdate());//getdate()[0] == time()36*8 16 echo "现在是：", @date("Y-m-d H:i:s", @getdate()[0]+28800), "\n"; 17 echo "现在的格林威治时间是：", gmdate("Y-m-d H:i:s", @getdate()[0]), "\n"; 18 echo "当前UTC-UNIX时间戳：", time(), "\n"; 19 echo "今天：", @strtotime("TOday"), "\n"; 20 echo "明天：", @strtotime("tomorrow"), "\n"; 21 echo "后天：", @strtotime("tomorrow + 1days"), "\n"; 22 23 echo "当前UNIX时间戳和微秒数："; 24 print_r(microtime(false));echo "\n"; 25 echo "当前时间戳浮点数：", microtime(true), "\n"; 26 27 date_default_timezone_set("PRC");//设置时区为东八区 28 echo "东八区时间： ", date("Y-m-d H-i-s", time()), "\n"; 29 30 $end_time = substr(microtime(), 0, 10); 31 echo "程序开始时间：", $start_time, " "; 32 echo "程序结束时间：", $end_time, " \n"; 33 printf("程序运行了%f微秒\n", $end_time-$start_time); 34 ?> 35 </pre> 36 </body> 37 </html>
标签：style class blog c code java
原文地址：http://www.cnblogs.com/baijifeilong/p/3750420.html
