php查询mysql数据表隔行变色输出结果

php查询数据库后，输出查询结果，隔行变色显示

<?php
$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="test"; // Database name
$tbl_name="test_mysql"; // Table name
 
// Connect to server and select databse
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
 
$sql="SELECT * FROM $tbl_name";
$result=mysql_query($sql);
 
// Define $color=1
$color="1";
 
echo '<table width="400" border="1" align="center" cellpadding="2" cellspacing="0">';
while($rows=mysql_fetch_array($result)){
 
// If $color==1 table row color = #FFC600
if($color==1){
echo "<tr bgcolor='#FFC600'>
<td>".$rows['id']."</td><td>".$rows['name']."</td><td>".$rows['email']."</td>
</tr>";
// Set $color==2, for switching to other color
$color="2";
}
 
// When $color not equal 1, use this table row color
else {
echo "<tr bgcolor='#C6FF00'>
<td>".$rows['id']."</td><td>".$rows['name']."</td><td>".$rows['email']."</td>
</tr>";
// Set $color back to 1
$color="1";
}
 
}
echo '</table>';
mysql_close();
?>