使用php mysql为div分配不同的类名

Question

I have four divs in one page which are styled so that it has four alternating colours. And the even div ie 2nd and 4th have an extra class name 'r' like this.

<div class="x-1 liner"><div>
<div class="x-2 liner r"><div>
<div class="x-3 liner"><div>
<div class="x-4 liner r"><div>

The results are pulled from the database, I can use the modulus operator ( % ) to assign alternating colours for two rows as shown in here but how can I do this for four rows and also add 'r' to the even divs?

Answer 1

As kojow7 says you can use % 2 and % 4 , see this code:

<?php

for($i = 1; $i <= 4; $i++) {
  echo "div class='x-$i liner";
  if($i % 2 == 0) echo ' r';
  if($i % 4 == 0) echo ' color';
  echo "'><div>\n"; 
}   

?>

Output:

div class='x-1 liner'><div>
div class='x-2 liner r'><div>
div class='x-3 liner'><div>
div class='x-4 liner r color'><div>

EDIT: With a foreach should be like this, but I don't know what values have $data

<?php

$i = 1;

foreach($data as $row) {
  echo "div class='x-$i liner";
  if($i % 2 == 0) echo ' r';
  if($i % 4 == 0) echo ' color';
  echo "'><div>\n"; 
  $i++;
}   

?>