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怎样校验输入的日期为合法的日期?这里有一个例子(chec
 
 
修改时间：[2010/12/24 00:31]    阅读次数：[1463]    发表者：[起缘]
 
<html>
<body>
<?
function is_numeric($var){
   $str = (string)$var;
   $int = (int)$var;
   $strstr = (string)$int;
   if($strstr==$str) return true;
   else return false;
}

function check($year,$month,$day)
{
   if(is_numeric($year) and is_numeric($month) and is_numeric($day)){
      if(checkdate($month,$day,$year)){
         echo $year . "年" . $month . "月" . $day . "日　是合法日期！<br>";
      }
      else{
         echo $year . "年" . $month . "月" . $day . "日　不是合法日期！<br>";
      }
   }
   else{
      echo $year . "年" . $month . "月" . $day . "日　不是合法日期！<br>";
   }
}

check("1999","1","1");
check("2000","2","31");
check("1900","2","1");
check("1900.2","2","1");
check("aaa","1","1");
?>
</body>
</html>