Count the total number of paragraph on any WordPress blog post

wp-count-total-paragraph.php

<?php
function __check_paragraph_count_blog( $content ) {
    global $post;
    if ( $post->post_type == 'post' ) {
        $count = substr_count( $content, '</p>' );
        return $count;
    } else {
        return 0;
    }
}

nice !