WordFence

<?php

if ( ! defined('ABSPATH')) exit;  // if direct access

add_filter('the_content','post_grid_preview_content');

function post_grid_preview_content($content){

if(is_singular('post_grid')){

$post_id = get_the_id();

$content .= do_shortcode('[post_grid id="'.$post_id.'"]');

}

return $content;

}

function post_grid_image_sizes(){

$get_intermediate_image_sizes =  get_intermediate_image_sizes();

$image_sizes = array();

foreach($get_intermediate_image_sizes as $size_key){

$size_key_name = str_replace('-', ' ',$size_key);

$size_key_name = str_replace('_', ' ',$size_key);

$size_key_name = ucfirst($size_key);

$image_sizes[$size_key] = $size_key_name;

}

return $image_sizes;

}

function post_grid_posttypes_array(){

$post_types_array = array();

global $wp_post_types;

$post_types_all = get_post_types( '', 'names' );

foreach ( $post_types_all as $post_type ) {

$obj = $wp_post_types[$post_type];

$post_types_array[$post_type] = $obj->labels->singular_name;

}

return $post_types_array;

}

function post_grid_get_taxonomies($post_types){

//$taxonomies = get_taxonomies();

$taxonomies = get_object_taxonomies( $post_types );

return $taxonomies;

//var_dump($taxonomies);

}