PHP時間函數

• 取值
  
  • 取今天日期
    

    $today = date("F j, Y, g:i a");                 // March 10, 2001, 5:16 pm
    $today = date("m.d.y");                         // 03.10.01
    $today = date("j, n, Y");                       // 10, 3, 2001
    $today = date("Ymd");                           // 20010310
    $today = date('h-i-s, j-m-y, it is w Day');     // 05-16-18, 10-03-01, 1631 1618 6 Satpm01
    $today = date('\i\t \i\s \t\h\e jS \d\a\y.');   // it is the 10th day.
    $today = date("D M j G:i:s T Y");               // Sat Mar 10 17:16:18 MST 2001
    $today = date('H:m:s \m \i\s\ \m\o\n\t\h');     // 17:03:18 m is month
    $today = date("H:i:s");                         // 17:16:18

  • 取今、明、後天的秒數
    

    $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);

  • 取特定日期到目前的秒數
    

    $Date_In = '2007-01-08';
    echo time() - strtotime($Date_In); // Output the number of seconds between now and $Date_In

• Validation
  
  • 判斷是否日期是否正確
    if(strtotime($Date_In))
    ...
    
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Reference

• php date