Sorry, I had missed that.
I'm still getting thte same error, unexpected =>
Here is the entire code:
<?php
$children = get_posts ('meta_key' => '_wpcf_belongs_review_id', 'meta_value' => $post->ID);
if( count( $children ) > 0 ) {?>
<style type="text/css">#review{display:none;}</style>
<?php }
else { }
?>
