I’m assuming your original code has a closing } at the end, like this:
<?php
global $post;
$postslist = get_posts( array( 'post_type' => 'reviews', 'posts_per_page' => 20, 'order'=> 'ASC', 'orderby' => 'date' ) );
foreach ( $postslist as $post ){
setup_postdata($post);
// Tag counter
$post_tags = get_the_tags($post->ID);
if ($post_tags) {
foreach($post_tags as $tag){
echo '<span class="review-count">' . $tag->count . ' review(s)' . '</span>';
}
}
}
?>
You’ll want to set up an array to hold all the post titles before your foreach loop so it persists.
<?php
global $post;
$postslist = get_posts( array( 'post_type' => 'reviews', 'posts_per_page' => 20, 'order'=> 'ASC', 'orderby' => 'date' ) );
// Set up an empty array
$review_titles = array();
foreach ( $postslist as $post ) {
setup_postdata($post);
// Use the title rather than tags
$review_title = $post->post_title;
// See if this title already exists in the array
foreach($review_titles as $key => $val) {
// If the title matches, add to its count
if($val['title'] == $review_title) {
$count = $val['count'] + 1;
$review_titles[$key]['count'] = $count;
// Stop looping since we already found a match
break;
}
// The title doesn't match, so add it to the array with count 1
else {
$review_titles[] = array('title' => "$review_title", 'count' => 1);
}
}
}
?>