Source for file functions_resources.php

<?php
 
function resource_class( $path ) {
 
 
    //folder
    if( is_dir( $path ) ) { return "folder"; }
    
    //image
    $path_parts = pathinfo( $path );
 
    if( !strcasecmp( $path_parts['extension'], "jpg" ) 
    || !strcasecmp( $path_parts['extension'], "jpeg" )
    || !strcasecmp( $path_parts['extension'], "gif" )
    || !strcasecmp( $path_parts['extension'], "png" ) ) {
        return 'image';
    }
    
    return false;
}
 
?>