Code คำนวณเวลาที่คุณล๊อคอินเข้าสู่ระบบ ทำยังไงอ่าครับ?

<?
if (isset($_POST['enter'])){
	$enter=$_POST['enter'];
	$name=$_POST['name'];
	$pass=$_POST['pass'];
	if ($name=="admin" && $pass=="1234" || $name=="root" && $pass=="4321"){$chk=true;}
	else if ($name!="root" && $pass=="4321" || $name!="admin" && $pass=="1234"){$chk=false; $text="Sorry! Username Incorrect.";}
	else if ($name=="root" && $pass!="4321" || $name=="admin" && $pass!="1234"){$chk=false; $text="Sorry! Password Incorrect.";}
	else {$chk=false; $text="Sorry! Username & Password Incorrect.";}
		if ($chk==false){?>
        		<div id="layout">
  					<form id="form1" name="form1" method="post" action="login.php">
    				<table width="500" border="1" align="center">
      				<tr>
        			<td colspan="2" align="center" bgcolor="#00FFCC">Account Login</td>
      				</tr>
      				<tr>
        			<td width="242" align="right">User Name : </td>
        			<td width="242"><label for="name"></label>
        			<input type="text" name="name" id="name" /></td>
      				</tr>
      				<tr>
        			<td align="right">Password :</td>
        			<td><label for="pass"></label>
       			 	<input type="password" name="pass" id="pass" /></td>
      				</tr>
      				<tr>
        			<td colspan="2" align="center" bgcolor="#00FFCC"><input type="submit" name="enter" id="enter" value="—Enter—" /></td>
      				</tr>
    				</table>
  					</form>
				</div><? echo "<center>".$text."</center>"; 
			 }
			 else{?>
             	<div id="layout">
				 <form id="form1" name="form1" method="post" action="login.php">
  				<table width="500" border="0" align="center">
    			<tr>
      			<td colspan="2" align="center" bgcolor="#999999">Welcome &quot;<? echo $name; ?>&quot; To Program!</td>
    			</tr>
    			<tr>
     		 	<td width="92" align="right" bgcolor="#CCCCCC">User Name : </td>
      			<td width="92" bgcolor="#CCCCCC"><? echo $name; ?></td>
    			</tr>
    			<tr>
      			<td align="right" bgcolor="#CCCCCC">D/M/Y : </td>
      			<td bgcolor="#CCCCCC"><? echo "".date("d/m/Y"); ?></td>
    			</tr>
    			<tr>
      			<td align="right" bgcolor="#CCCCCC">Time : </td>
      			<td bgcolor="#CCCCCC"><? $time=getdate(); echo $time["hours"].":".$time["minutes"].":".$time["seconds"]; ?></td>
    			</tr>
    			<tr>
    			  <td align="right" bgcolor="#FFFFFF">&nbsp;</td>
    			  <td align="right" bgcolor="#FFFFFF"><input type="submit" name="out" id="out" value="—Logout—" /></td>
  			  </tr>
  				</table>
				</form>
				</div><?
			 }
	
}
else{
?>
<div id="layout">
  <form id="form1" name="form1" method="post" action="login.php">
    <table width="500" border="1" align="center">
      <tr>
        <td colspan="2" align="center" bgcolor="#00FFCC">Account Login</td>
      </tr>
      <tr>
        <td width="242" align="right">User Name : </td>
        <td width="242"><label for="name"></label>
        <input type="text" name="name" id="name" /></td>
      </tr>
      <tr>
        <td align="right">Password :</td>
        <td><label for="pass"></label>
        <input type="password" name="pass" id="pass" /></td>
      </tr>
      <tr>
        <td colspan="2" align="center" bgcolor="#00FFCC"><input type="submit" name="enter" id="enter" value="—Login—" /></td>
      </tr>
    </table>
  </form>
</div>
<?
	if (isset($_POST['out'])){
		$time=getdate(); echo  "timeout : ".$time["hours"].":".$time["minutes"].":".$time["seconds"]."<br/>";
		echo "timein: ";
	}
}
?>