ForEach loop: Output something different on every second result - php

Question

I have two for each loops and I am trying to output something different for each second result:
foreach ($wppost as $wp) {
$wp_title = $wp->post_title;
$wp_date = strtotime($wp->post_date);
$wp_slug = $wp->post_name;
$wp_id = $wp->ID;
// Start Permalink Template
$wp_showurl = $wp_url;
$wp_showurl = str_replace("%year%", date('Y', $wp_date), $wp_showurl);
$wp_showurl = str_replace("%monthnum%", date('m', $wp_date), $wp_showurl);
$wp_showurl = str_replace("%day%", date('d', $wp_date), $wp_showurl);
$wp_showurl = str_replace("%hour%", date('H', $wp_date), $wp_showurl);
$wp_showurl = str_replace("%minute%", date('i', $wp_date), $wp_showurl);
$wp_showurl = str_replace("%second%", date('s', $wp_date), $wp_showurl);
$wp_showurl = str_replace("%postname%", $wp_slug, $wp_showurl);
$wp_showurl = str_replace("%post_id%", $wp_id, $wp_showurl);
// Stop Permalink Template
$wp_posturl = $blog_address . $wp_showurl;
echo '<li>'.$wp_title.'</li>';
}
For this one I want it to echo <li class="even"> instead of just <li> for each second result. I think this will have to be changed to a for loop to accomplished this but I am not sure how that is done without breaking it.
Exact same for this one:
if(is_array($commenters)) {
foreach ($commenters as $k) {
?><li><?php
if($ns_options["make_links"] == 1) {
$url = ns_get_user_url($k->poster_id);
if(trim($url) != '')
{
echo "<a href='" . $url . "'>";
}
}
if($ns_options["make_links"] == 2) {
$url = ns_get_user_profile($k->poster_id);
echo "<a href='" . $url . "'>";
}
$name = $bbdb->get_var("
SELECT user_login
FROM $bbdb->users
WHERE ID = $k->poster_id");
echo ns_substr_ellipse($name, $ns_options["name_limit"]);
if(trim($url) != '' && $ns_options["make_links"] == 1) {
echo "</a>";
}
if($ns_options["make_links"] == 2) {
echo "</a>";
}
if ($ns_options["show_posts"] == 1)
{
echo " (" . $k->num_posts . ")\n";
}
echo $ns_options["end_html"] . "\n";
unset($url);
}
} else {
?></li><?php
}
Thanks,
Wade

Answer 1

You can create a "counting" variable, and then use the result of $count % 2 to determine if it is an odd or even row:
$rowCount = 0;
foreach ($wppost as $wp) {
// stripping stuff:
echo '<li';
// increase $rowCount - if the remainder of a division by 2 is 1, echo extra class info:
if ($rowCount++ % 2 == 1 ) echo ' class="even"';
echo '>'.$wp_title.'</li>';
}
if(is_array($commenters)) {
$commentCount = 0;
foreach ($commenters as $k) {
?><li<?php echo ($commentCount++%2==1)?' class="even"':''?>><?php
//stripped the rest of the loop:
}
}

Answer 2

I have done something like this, maybe this will help someone who is searching for this type of solutions.
#foreach ($occasions as $key => $occasion)
#if ($key++ % 2 == 1)
<li style="background: #f6f6f6;">
#else
<li>
#endif
{{$occasion->name}}</li>
#endforeach