Displaying 3 column search results

[crawdidly]

I would like to include the div class < div class="section group" > every 3rd iteration of the loop. The format of the div layout I'm working with is below.

<div class="section group">
   <div class="col span_1_of_3">
   echo 'text';
   </div>
   <div class="col span_1_of_3">
    echo 'text';
   </div>
   <div class="col span_1_of_3">
    echo 'text';
    </div>
</div>

The loop

$i = 1;

$sql = "select * from customers ORDER by customers_name";
$result = mysql_query($sql);
$row = mysql_fetch_array($result);

echo "<div>";

// echo '<div class="section group">';  this line needs to appear every 3 iteration pattern of a loop, how do I intergrate into loop below?

while ($row = mysql_fetch_array($result)) {
  if ($i == 1) {
     echo "<div class="col span_1_of_3">";
  }
  echo "<a href=\"customers.php?cust_id=" . $row['cust_id'] . "\">$row[cust_name]</a>";
  if ($i == 3) {
     $i = 1;
     echo "</div>";
  }
  else {
     $i++;
  }
}

echo "</div>"; 

[crawdidly]

crawdidly
Fixed.

$i = 1;

$sql = "select * from customers ORDER by customers_name";
$result = mysql_query($sql);
$row = mysql_fetch_array($result);

echo "<div>";

// echo '<div class="section group">';  this line needs to appear every 3 iteration pattern of a loop, how do I intergrate into loop below?

while ($row = mysql_fetch_array($result)) {
  if ($i == 1) {
     echo "<div class="section group">";
  }
  echo '<div class="col span_1_of_3">';
  echo "<a href=\"customers.php?cust_id=" . $row['cust_id'] . "\">$row[cust_name]</a>";
  if ($i == 3) {
     $i = 1;
     echo "</div>";
  }
  else {
     $i++;
  }
}

echo "</div>";