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functions.php
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678 lines (579 loc) · 23.8 KB
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<?php
/*
Author: David Perez
URL: https://www.closemarketing.es
This is where you can drop your custom functions or
just edit things like thumbnail sizes, header images,
sidebars, comments, ect.
*/
/* Load Composer Dependency Libraries */
require plugin_dir_path( __FILE__) . 'vendor/autoload.php';
// Set content width
if ( ! isset( $content_width ) ) $content_width = 580;
/************* THEME OPTIONS *************/
function wpbo_theme_settings_functions() {
// Thumbnail sizes
add_image_size( 'wpbo-featured', 848, 300, true );
add_image_size( 'wpbo-featured-home', 970, 311, true);
add_image_size( 'wpbo-featured-carousel', 970, 400, true);
/*** Title Tag since version WordPress 4.1 ***/
add_theme_support( 'title-tag' );
/*** Title Tag since version WordPress 4.5 ***/
add_theme_support( 'custom-logo', array(
'height' => 100,
'width' => 200,
'flex-height' => true,
'flex-width' => true,
) );
}
add_action( 'after_setup_theme', 'wpbo_theme_settings_functions', 11 );
/**** THEME BLOCKS ***/
function wpbo_preheader() {
?>
<meta charset="utf-8">
<!--[if IE]><meta http-equiv='X-UA-Compatible' content='IE=edge,chrome=1'><![endif]-->
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="pingback" href="<?php bloginfo('pingback_url'); ?>">
<?php
do_action('wpbo_preheader');
}
function wpbo_doctype() {
?><!doctype html>
<!--[if IEMobile 7 ]> <html <?php language_attributes(); ?>class="no-js iem7"> <![endif]-->
<!--[if lt IE 7 ]> <html <?php language_attributes(); ?> class="no-js ie6"> <![endif]-->
<!--[if IE 7 ]> <html <?php language_attributes(); ?> class="no-js ie7"> <![endif]-->
<!--[if IE 8 ]> <html <?php language_attributes(); ?> class="no-js ie8"> <![endif]-->
<!--[if (gte IE 9)|(gt IEMobile 7)|!(IEMobile)|!(IE)]><!--><html <?php language_attributes(); ?> class="no-js"><!--<![endif]-->
<?php
do_action('wpbo_preheader');
}
/************* ACTIVE SIDEBARS ********************/
// Sidebars & Widgetizes Areas
function wpbo_bootstrap_register_sidebars() {
register_sidebar(array(
'id' => 'sidebar1',
'name' => __('Main Sidebar','wpbo'),
'before_widget' => '<div id="%1$s" class="widget %2$s">',
'description' => __('Used on every page BUT the homepage page template.','wpbo'),
'after_widget' => '</div>',
'before_title' => '<h4 class="widgettitle">',
'after_title' => '</h4>',
));
register_sidebar(array(
'id' => 'sidebar2',
'name' => __('Homepage Sidebar','wpbo'),
'description' => __('Used only on the homepage page template.','wpbo'),
'before_widget' => '<div id="%1$s" class="widget %2$s">',
'after_widget' => '</div>',
'before_title' => '<h4 class="widgettitle">',
'after_title' => '</h4>',
));
register_sidebar(array(
'id' => 'sidebar-contact',
'name' => __('Contact Page Sidebar','wpbo'),
'description' => __('Used only on the homepage page template.','wpbo'),
'before_widget' => '<div id="%1$s" class="widget %2$s">',
'after_widget' => '</div>',
'before_title' => '<h4 class="widgettitle">',
'after_title' => '</h4>',
));
register_sidebar(array(
'id' => 'footer1',
'name' => __('Footer 1','wpbo'),
'before_widget' => '<div id="%1$s" class="widget col-sm-4 %2$s">',
'after_widget' => '</div>',
'before_title' => '<h4 class="widgettitle">',
'after_title' => '</h4>',
));
register_sidebar(array(
'id' => 'footer2',
'name' => __('Footer 2','wpbo'),
'before_widget' => '<div id="%1$s" class="widget col-sm-4 %2$s">',
'after_widget' => '</div>',
'before_title' => '<h4 class="widgettitle">',
'after_title' => '</h4>',
));
register_sidebar(array(
'id' => 'footer3',
'name' => __('Footer 3','wpbo'),
'before_widget' => '<div id="%1$s" class="widget col-sm-4 %2$s">',
'after_widget' => '</div>',
'before_title' => '<h4 class="widgettitle">',
'after_title' => '</h4>',
));
} // don't remove this bracket!
/************* COMMENT LAYOUT *********************/
// Comment Layout
if ( ! function_exists( 'wpbo_bootstrap_comments' ) ) :
function wpbo_bootstrap_comments($comment, $args, $depth) {
$GLOBALS['comment'] = $comment; ?>
<li <?php comment_class(); ?>>
<article id="comment-<?php comment_ID(); ?>" class="clearfix">
<div class="comment-author vcard clearfix">
<div class="avatar col-sm-3">
<?php echo get_avatar( $comment, $size='75' ); ?>
</div>
<div class="col-sm-9 comment-text">
<?php printf('<h4>%s</h4>', get_comment_author_link()) ?>
<?php edit_comment_link(__('Edit','wpbo'),'<span class="edit-comment btn btn-sm btn-info"><i class="glyphicon-white glyphicon-pencil"></i>','</span>') ?>
<?php if ($comment->comment_approved == '0') : ?>
<div class="alert-message success">
<p><?php _e('Your comment is awaiting moderation.','wpbo') ?></p>
</div>
<?php endif; ?>
<?php comment_text() ?>
<time datetime="<?php echo comment_time('Y-m-j'); ?>"><a href="<?php echo htmlspecialchars( get_comment_link( $comment->comment_ID ) ) ?>"><?php comment_time( get_option('date_format') ); ?> </a></time>
<?php comment_reply_link(array_merge( $args, array('depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
</div>
</div>
</article>
<!-- </li> is added by wordpress automatically -->
<?php
} // don't remove this bracket!
endif;
// Display trackbacks/pings callback function
if ( ! function_exists( 'wpbo_list_pings' ) ) :
function wpbo_list_pings($comment, $args, $depth) {
$GLOBALS['comment'] = $comment;
?>
<li id="comment-<?php comment_ID(); ?>"><i class="icon icon-share-alt"></i> <?php comment_author_link(); ?>
<?php
}
endif;
/************* PAGE NAVI *****************/
if ( ! function_exists( 'wpbo_pagenavi' ) ) :
function wpbo_pagenavi()
{
global $wp_query;
$big = 999999999; // need an unlikely integer
$pages = paginate_links( array(
'base' => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
'format' => '?paged=%#%',
'current' => max( 1, get_query_var('paged') ),
'total' => $wp_query->max_num_pages,
'prev_next' => false,
'type' => 'array',
'prev_next' => TRUE,
'prev_text' => '<i class="fa fa-chevron-left" aria-hidden="true"></i>',
'next_text' => '<i class="fa fa-chevron-left" aria-hidden="true"></i>',
) );
if( is_array( $pages ) ) {
$paged = ( get_query_var('paged') == 0 ) ? 1 : get_query_var('paged');
echo '<ul class="pagination">';
foreach ( $pages as $page ) {
echo "<li>$page</li>";
}
echo '</ul>';
}
}
endif;
/************* SEARCH FORM LAYOUT *****************/
/****************** password protected post form *****/
add_filter( 'the_password_form', 'wpbo_custom_password_form' );
if ( ! function_exists( 'wpbo_custom_password_form' ) ) :
function wpbo_custom_password_form() {
global $post;
$label = 'pwbox-'.( empty( $post->ID ) ? rand() : $post->ID );
$o = '<div class="clearfix"><form class="protected-post-form" action="' . get_option('siteurl') . '/wp-login.php?action=postpass" method="post">
' . '<p>' . __( "This post is password protected. To view it please enter your password below:" ,'wpbo') . '</p>' . '
<label for="' . $label . '">' . __( "Password:" ,'wpbo') . ' </label><div class="input-append"><input name="post_password" id="' . $label . '" type="password" size="20" /><input type="submit" name="Submit" class="btn btn-primary" value="' . esc_attr__( "Submit",'wpbo' ) . '" /></div>
</form></div>
';
return $o;
}
endif;
/*********** update standard wp tag cloud widget so it looks better ************/
add_filter( 'widget_tag_cloud_args', 'wpbo_my_widget_tag_cloud_args' );
if ( ! function_exists( 'wpbo_my_widget_tag_cloud_args' ) ) :
function wpbo_my_widget_tag_cloud_args( $args ) {
$args['number'] = 20; // show less tags
$args['largest'] = 9.75; // make largest and smallest the same - i don't like the varying font-size look
$args['smallest'] = 9.75;
$args['unit'] = 'px';
return $args;
}
endif;
// filter tag clould output so that it can be styled by CSS
if ( ! function_exists( 'wpbo_add_tag_class' ) ) :
function wpbo_add_tag_class( $taglinks ) {
$tags = explode('</a>', $taglinks);
$regex = "#(.*tag-link[-])(.*)(' title.*)#e";
foreach( $tags as $tag ) {
$tagn[] = preg_replace($regex, "('$1$2 label tag-'.get_tag($2)->slug.'$3')", $tag );
}
$taglinks = implode('</a>', $tagn);
return $taglinks;
}
endif;
add_action( 'wp_tag_cloud', 'wpbo_add_tag_class' );
add_filter( 'wp_tag_cloud','wpbo_tag_cloud_filter', 10, 2) ;
if ( ! function_exists( 'wpbo_tag_cloud_filter' ) ) :
function wpbo_tag_cloud_filter( $return, $args )
{
return '<div id="tag-cloud">' . $return . '</div>';
}
endif;
// Enable shortcodes in widgets
add_filter( 'widget_text', 'do_shortcode' );
// Disable jump in 'read more' link
if ( ! function_exists( 'wpbo_remove_more_jump_link' ) ) :
function wpbo_remove_more_jump_link( $link ) {
$offset = strpos($link, '#more-');
if ( $offset ) {
$end = strpos( $link, '"',$offset );
}
if ( $end ) {
$link = substr_replace( $link, '', $offset, $end-$offset );
}
return $link;
}
endif;
add_filter( 'the_content_more_link', 'wpbo_remove_more_jump_link' );
// Remove height/width attributes on images so they can be responsive
add_filter( 'post_thumbnail_html', 'wpbo_remove_thumbnail_dimensions', 10 );
add_filter( 'image_send_to_editor', 'wpbo_remove_thumbnail_dimensions', 10 );
if ( ! function_exists( 'wpbo_remove_thumbnail_dimensions' ) ) :
function wpbo_remove_thumbnail_dimensions( $html ) {
$html = preg_replace( '/(width|height)=\"\d*\"\s/', "", $html );
return $html;
}
endif;
// Add the Meta Box to the homepage template
if ( ! function_exists( 'wpbo_add_homepage_meta_box' ) ) :
function wpbo_add_homepage_meta_box() {
global $post;
// Only add homepage meta box if template being used is the homepage template
// $post_id = isset($_GET['post']) ? $_GET['post'] : (isset($_POST['post_ID']) ? $_POST['post_ID'] : "");
$post_id = $post->ID;
$template_file = get_post_meta($post_id,'_wp_page_template',TRUE);
if ( $template_file == 'page-homepage.php' ){
add_meta_box(
'homepage_meta_box', // $id
'Optional Homepage Tagline', // $title
'wpbo_show_homepage_meta_box', // $callback
'page', // $page
'normal', // $context
'high'); // $priority
}
}
endif;
add_action( 'add_meta_boxes', 'wpbo_add_homepage_meta_box' );
// Field Array
$prefix = 'custom_';
$wpbo_custom_meta_fields = array(
array(
'label'=> __('Homepage tagline area','wpbo'),
'desc' => __('Displayed underneath page title. Only used on homepage template. HTML can be used.','wpbo'),
'id' => $prefix.'tagline',
'type' => 'textarea'
)
);
// The Homepage Meta Box Callback
if ( ! function_exists( 'wpbo_show_homepage_meta_box' ) ) :
function wpbo_show_homepage_meta_box() {
global $wpbo_custom_meta_fields, $post;
// Use nonce for verification
wp_nonce_field( basename( __FILE__ ), 'wpbs_nonce' );
// Begin the field table and loop
echo '<table class="form-table">';
foreach ( $wpbo_custom_meta_fields as $field ) {
// get value of this field if it exists for this post
$meta = get_post_meta($post->ID, $field['id'], true);
// begin a table row with
echo '<tr>
<th><label for="'.$field['id'].'">'.$field['label'].'</label></th>
<td>';
switch($field['type']) {
// text
case 'text':
echo '<input type="text" name="'.$field['id'].'" id="'.$field['id'].'" value="'.$meta.'" size="60" />
<br /><span class="description">'.$field['desc'].'</span>';
break;
// textarea
case 'textarea':
echo '<textarea name="'.$field['id'].'" id="'.$field['id'].'" cols="80" rows="4">'.$meta.'</textarea>
<br /><span class="description">'.$field['desc'].'</span>';
break;
} //end switch
echo '</td></tr>';
} // end foreach
echo '</table>'; // end table
}
endif;
// Save the Data
if ( ! function_exists( 'wpbo_save_homepage_meta' ) ) :
function wpbo_save_homepage_meta( $post_id ) {
global $wpbo_custom_meta_fields;
// verify nonce
if ( !isset( $_POST['wpbs_nonce'] ) || !wp_verify_nonce($_POST['wpbs_nonce'], basename(__FILE__)) )
return $post_id;
// check autosave
if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE )
return $post_id;
// check permissions
if ( 'page' == $_POST['post_type'] ) {
if ( !current_user_can( 'edit_page', $post_id ) )
return $post_id;
} elseif ( !current_user_can( 'edit_post', $post_id ) ) {
return $post_id;
}
// loop through fields and save the data
foreach ( $wpbo_custom_meta_fields as $field ) {
$old = get_post_meta( $post_id, $field['id'], true );
$new = $_POST[$field['id']];
if ($new && $new != $old) {
update_post_meta( $post_id, $field['id'], $new );
} elseif ( '' == $new && $old ) {
delete_post_meta( $post_id, $field['id'], $old );
}
} // end foreach
}
endif;
add_action( 'save_post', 'wpbo_save_homepage_meta' );
// Add thumbnail class to thumbnail links
if ( ! function_exists( 'wpbo_add_class_attachment_link' ) ) :
function wpbo_add_class_attachment_link( $html ) {
$postid = get_the_ID();
$html = str_replace( '<a','<a class="thumbnail"',$html );
return $html;
}
endif;
add_filter( 'wp_get_attachment_link', 'wpbo_add_class_attachment_link', 10, 1 );
// Add lead class to first paragraph
if( !function_exists('wpbo_first_paragraph') ) {
function wpbo_first_paragraph( $content ){
global $post;
// if we're on the homepage, don't add the lead class to the first paragraph of text
if( is_page_template( 'page-homepage.php' ) )
return $content;
else
return preg_replace('/<p([^>]+)?>/', '<p$1 class="lead">', $content, 1);
}
add_filter( 'the_content', 'wpbo_first_paragraph' );
}
// Menu output mods
class Bootstrap_walker extends Walker_Nav_Menu{
function start_el(&$output, $object, $depth = 0, $args = Array(), $current_object_id = 0){
global $wp_query;
$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
$class_names = $value = '';
// If the item has children, add the dropdown class for bootstrap
if ( $args->has_children ) {
$class_names = "dropdown ";
}
$classes = empty( $object->classes ) ? array() : (array) $object->classes;
$class_names .= join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $object ) );
$class_names = ' class="'. esc_attr( $class_names ) . '"';
$output .= $indent . '<li id="menu-item-'. $object->ID . '"' . $value . $class_names .'>';
$attributes = ! empty( $object->attr_title ) ? ' title="' . esc_attr( $object->attr_title ) .'"' : '';
$attributes .= ! empty( $object->target ) ? ' target="' . esc_attr( $object->target ) .'"' : '';
$attributes .= ! empty( $object->xfn ) ? ' rel="' . esc_attr( $object->xfn ) .'"' : '';
$attributes .= ! empty( $object->url ) ? ' href="' . esc_attr( $object->url ) .'"' : '';
// if the item has children add these two attributes to the anchor tag
// if ( $args->has_children ) {
// $attributes .= ' class="dropdown-toggle" data-toggle="dropdown"';
// }
$item_output = $args->before;
$item_output .= '<a'. $attributes .'>';
$item_output .= $args->link_before .apply_filters( 'the_title', $object->title, $object->ID );
$item_output .= $args->link_after;
// if the item has children add the caret just before closing the anchor tag
if ( $args->has_children ) {
$item_output .= '<b class="caret"></b></a>';
}
else {
$item_output .= '</a>';
}
$item_output .= $args->after;
$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $object, $depth, $args );
} // end start_el function
function start_lvl(&$output, $depth = 0, $args = Array()) {
$indent = str_repeat("\t", $depth);
$output .= "\n$indent<ul class=\"dropdown-menu\">\n";
}
function display_element( $element, &$children_elements, $max_depth, $depth=0, $args, &$output ){
$id_field = $this->db_fields['id'];
if ( is_object( $args[0] ) ) {
$args[0]->has_children = ! empty( $children_elements[$element->$id_field] );
}
return parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output );
}
}
// Add Twitter Bootstrap's standard 'active' class name to the active nav link item
add_filter('nav_menu_css_class', 'wpbo_add_active_class', 10, 2 );
if ( ! function_exists( 'wpbo_add_active_class' ) ) :
function wpbo_add_active_class($classes, $item) {
if( $item->menu_item_parent == 0 && in_array('current-menu-item', $classes) ) {
$classes[] = "active";
}
return $classes;
}
endif;
// enqueue styles
if( !function_exists("wpbo_theme_styles") ) {
function wpbo_theme_styles() {
// This is the main file for bootstrap
wp_register_style( 'bootstrap',
get_template_directory_uri() . '/vendor/twbs/bootstrap/dist/css/bootstrap.min.css',
array(), '1.0', 'all' );
wp_enqueue_style( 'bootstrap' );
// This is the main file for bootstrap
wp_register_style( 'wpbo',
get_template_directory_uri() . '/library/css/wpbo.css',
array(), '1.0', 'all' );
wp_enqueue_style( 'wpbo' );
// For child themes
wp_register_style( 'wpbo-style',
get_stylesheet_directory_uri() . '/style.css',
array(), '1.0', 'all' );
wp_enqueue_style( 'wpbo-style' );
//Font Awesome
wp_enqueue_style( 'wpbo-font-awesome',
get_template_directory_uri() . '/vendor/fortawesome/font-awesome/css/font-awesome.min.css',
array(), '4.5.0' );
}
}
add_action( 'wp_enqueue_scripts', 'wpbo_theme_styles' );
add_action( 'init', 'wpbo_add_editor_styles' );
/**
* Apply theme's stylesheet to the visual editor.
*
* @uses add_editor_style() Links a stylesheet to visual editor
* @uses get_stylesheet_uri() Returns URI of theme stylesheet
*/
function wpbo_add_editor_styles() {
add_editor_style( 'library/css/editor-style.css' );
}
// enqueue javascript
if( !function_exists( "wpbo_theme_js" ) ) {
function wpbo_theme_js(){
wp_register_script( 'bootstrap',
get_template_directory_uri() . '/vendor/twbs/bootstrap/dist/js/bootstrap.min.js',
array('jquery'),
'1.2' );
wp_enqueue_script('bootstrap');
wp_register_script( 'wpbo-scripts',
get_template_directory_uri() . '/library/js/scripts.js',
array('jquery'),
'1.2' );
wp_enqueue_script('wpbo-scripts');
}
}
add_action( 'wp_enqueue_scripts', 'wpbo_theme_js' );
// Adding Translation Option
load_theme_textdomain( 'wpbo', get_template_directory().'/languages' );
// loading jquery reply elements on single pages automatically
function wpbo_bootstrap_queue_js(){ if (!is_admin()){ if ( is_singular() AND comments_open() AND (get_option('thread_comments') == 1)) wp_enqueue_script( 'comment-reply' ); }
}
// reply on comments script
add_action('wp_enqueue_scripts', 'wpbo_bootstrap_queue_js');
// Fixing the Read More in the Excerpts
// This removes the annoying ... to a Read More link
function wpbo_bootstrap_excerpt_more($more) {
global $post;
// edit here if you like
return '... <a href="'. get_permalink($post->ID) . '" class="more-link" title="'.__('Read','wpbo').' '.get_the_title($post->ID).'">'.__('Read more','wpbo').' »</a>';
}
add_filter('excerpt_more', 'wpbo_bootstrap_excerpt_more');
// Adding WP 3+ Functions & Theme Support
function wpbo_bootstrap_theme_support() {
add_theme_support('post-thumbnails'); // wp thumbnails (sizes handled in functions.php)
set_post_thumbnail_size(125, 125, true); // default thumb size
add_theme_support( 'custom-background' ); // wp custom background
add_theme_support('automatic-feed-links'); // rss thingy
// to add header image support go here: http://themble.com/support/adding-header-background-image-support/
// adding post format support
/* add_theme_support( 'post-formats', // post formats
array(
'aside', // title less blurb
'gallery', // gallery of images
'link', // quick link to other site
'image', // an image
'quote', // a quick quote
'status', // a Facebook like status update
'video', // video
'audio', // audio
'chat' // chat transcript
)
);*/
add_theme_support( 'menus' ); // wp menus
register_nav_menus( // wp3+ menus
array(
'main_nav' => __('The Main Menu','wpbo'), // main nav in header
'footer_links' => __('Footer Links','wpbo') // secondary nav in footer
)
);
}
// launching this stuff after theme setup
add_action('after_setup_theme','wpbo_bootstrap_theme_support');
// adding sidebars to WordPress (these are created in functions.php)
add_action( 'widgets_init', 'wpbo_bootstrap_register_sidebars' );
function wpbo_bootstrap_main_nav() {
// display the wp3 menu if available
wp_nav_menu(
array(
'menu' => 'main_nav', /* menu name */
'menu_class' => 'nav navbar-nav',
'theme_location' => 'main_nav', /* where in the theme it's assigned */
'container' => 'false', /* container class */
'fallback_cb' => 'wpbo_bootstrap_main_nav_fallback', /* menu fallback */
// 'depth' => '2', suppress lower levels for now
'walker' => new Bootstrap_walker()
)
);
}
function wpbo_bootstrap_footer_links() {
// display the wp3 menu if available
wp_nav_menu(
array(
'menu' => 'footer_links', /* menu name */
'theme_location' => 'footer_links', /* where in the theme it's assigned */
'container_class' => 'footer-links clearfix', /* container class */
'fallback_cb' => 'wpbo_bootstrap_footer_links_fallback' /* menu fallback */
)
);
}
// this is the fallback for header menu
function wpbo_bootstrap_main_nav_fallback() {
// Figure out how to make this output bootstrap-friendly html
//wp_page_menu( 'show_home=Home&menu_class=nav' );
}
// this is the fallback for footer menu
function wpbo_bootstrap_footer_links_fallback() {
/* you can put a default here if you like */
}
/****************** PLUGINS & EXTRA FEATURES **************************/
/*********************
RELATED POSTS FUNCTION
*********************/
// Related Posts Function (call using bones_related_posts(); )
function wpbo_bones_related_posts() {
echo '<ul id="bones-related-posts">';
global $post;
$tags = wp_get_post_tags( $post->ID );
if($tags) {
foreach( $tags as $tag ) {
$tag_arr .= $tag->slug . ',';
}
$args = array(
'tag' => $tag_arr,
'numberposts' => 5, /* you can change this to show more */
'post__not_in' => array($post->ID)
);
$related_posts = get_posts( $args );
if($related_posts) {
foreach ( $related_posts as $post ) : setup_postdata( $post ); ?>
<li class="related_post"><a class="entry-unrelated" href="<?php the_permalink() ?>" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></li>
<?php endforeach; }
else { ?>
<?php echo '<li class="no_related_post">' . __( 'No Related Posts Yet!', 'wpbo' ) . '</li>'; ?>
<?php }
}
wp_reset_postdata();
echo '</ul>';
} /* end bones related posts function */
// remove the p from around imgs (http://css-tricks.com/snippets/wordpress/remove-paragraph-tags-from-around-images/)
function wpbo_filter_ptags_on_images($content){
return preg_replace('/<p>\s*(<a .*>)?\s*(<img .* \/>)\s*(<\/a>)?\s*<\/p>/iU', '\1\2\3', $content);
}
add_filter('the_content', 'wpbo_filter_ptags_on_images');