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<table align="center" width="600" bgcolor="#FFE87C"><form name='admin' action="staffhandling.php" method="post"><tr>	<td bgcolor="#C3FDB8" colspan="2" align="center"><b> <?=$msg?></b></td></tr><tr>	<td width="200"> Select Option</td>	<td width="300">		<select name='option'>			<option value="">--Select Option--</option>			<option value='insert' <? if($_POST['option'] == 'insert' ) echo "selected";?>>Add Student</option>			<option value='delete' <? if($_POST['option'] == 'delete' ) echo "selected";?>>Delete Student</option>		</select>	</td></tr><tr>	<td> Please enter username</td>	<td><input type="text" name='username' value="<?=$_POST['username']?>"></td></tr><tr>	<td colspan="2"><input type="submit" name='btn' value="Submit">	<form action ="showclasses1.php" method="post">		<input type="submit" value="Show all students"/></td></tr></form></table></body></html>