Diễn Đàn Website

<?php echo "<table width='400' border='1'>"; $i=1; while($i<=5) { if($i%2==0) { echo "<tr>"; $j=1; while($j<=7) { echo "<td>2</td>"; $j++; } echo "</tr>"; } else{ echo "<tr>"; for($j=1;$j<=7;$j++) echo "<td>1</td>"; echo "</tr>"; } $i++; } echo "</table>"; ?> </body> </html>

<?php echo "<table width='600' border='1'>"; for($i=1;$i<=10;$i++) { switch($i) { case 1: case 5: case 7: $mau="red"; break; case 2: case 8: case 9: $mau="blue"; break; case 3: case 4: $mau="yellow"; break; default : $mau="green"; break; } echo "<tr bgcolor='$mau'>"; for($j=1;$j<=5;$j++) echo "<td>2</td>"; echo "</tr>"; } echo "</table>"; ?>

<?php echo "<table width='400' border='1'>"; for($i=1;$i<=5;$i++) { echo "<tr>"; if($i%2==0) { for($j=1;$j<=7;$j++) echo "<td>2</td>"; } else { for($j=1;$j<=7;$j++) echo "<td>1</td>"; } echo "</tr>"; } echo "</table>"; ?>

<?php echo "<table width='400' border='1'>"; for($i=1;$i<=5;$i++) { echo "<tr>"; for($j=1;$j<=7;$j++) echo "<td>2</td>"; echo "</tr>"; } echo "</table>"; ?>

<?php $a=8; $b=2; echo "<table width='600' border='1'>"; echo "<tr><td></td><td>+</td><td>-</td><td>*</td><td>/</td></tr>"; echo "<tr><td>a=$a</td><td rowspan='2'>".($a+$b)."</td><td rowspan='2'>".($a-$b)."</td><td rowspan='2'> ".($a*$b)." </td><td rowspan='2'>".($a/$b)."</td></tr>"; echo "<tr><td>b=$b</td></tr>"; echo "</table>"; ?>

<?php      $a="Tí";      $b=17;      echo "<table width='600' border='1'>";      echo "<tr><td>Tên</td><td>Tuổi</td></tr>";      echo "<tr><td>$a</td><td>$b</td></tr>";      echo "</table>"; ?>