ApoGouv · October 18, 2018 07:26
diff --git a/wp-print-vars-in-footer-admin-only.php b/wp-print-vars-in-footer-admin-only.php
 <?php

 /**
 * [cds_add_to_footer description]
 * DEBUG - output to footer only for logged-in admins
 * @return [type] [description]
 */
 function cds_add_to_footer(){ 
    
    // Don't display for non-admin users
    if ( ! current_user_can( 'manage_options' ) )
        return;
        
 	// wp globals
 	// global $wp_rewrite;
    // global $post;
    
 	//#1
 	if (is_single() ) {
        global $post;
        
        $categories = array();
        $category_nicknames = array();
        foreach((get_the_category($post->ID)) as $category) {
            $categories[] = $category;
            // add category slug to the $category_nicknames array
            $category_nicknames[] = $category->category_nicename;
        }
        
        echo '<div class="cds debug" style="
 		    background: #f1f1f1;
 		    border: 3px solid black;
 		    position: relative;
 		    padding:  20px;
 		">';

 			highlight_string("\n<?php\n\$categories =\n" . var_export($categories, true) . ";\n?>");
 			highlight_string("\n<?php\n\$category_nicknames =\n" . var_export($category_nicknames, true) . ";\n?>");

 		echo '</div><!-- /.cds.debug -->';
    }

 }
 add_action('wp_footer','cds_add_to_footer');