Thursday, June 22, 2017

How to add active class to menu in codeigniter

CodeIgniter: How to 'highlight' the link of the page the user is currently on? If you are new CodeIgniter user this may your question. There are many tricks to highlight active menu link of CodeIgniter framework. Here is a very simple trick to do this. At first you need to create a helper class. I crated this file in 'helpers' called 'menu_helper.php'.
helpers/menu_helper.php
<?php
    if(!function_exists('menu_anchor')){
    function menu_anchor($uri = '', $title = '', $attributes = ''){
        $title = (string) $title;

        if ( ! is_array($uri)){
            $site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri;
        }else{
            $site_url = site_url($uri);
        }

        if ($title == ''){
            $title = $site_url;
        }

        if ($attributes != ''){
            $attributes = _parse_attributes($attributes);
        }
$current_url = (!empty($_SERVER['HTTPS'])) ? "https://".$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'] : "http://".$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'];
        $attributes .= ($site_url == $current_url) ? 'class="active"' : 'class="normal"';
        return '<a href="'.$site_url.'"'.$attributes.'>'.$title.'</a>';
    }
}
Load the file: You can load this file via the controller..
$this->load->helper('menu');
Or you can also load directly putting it above the view file with the php tags.
<?php $this->load->helper('menu'); ?>
The view file:
<?=menu_anchor(base_url()."controller_name", "Home")?>
<?=menu_anchor(base_url()."controller_name", "About")?>
<?=menu_anchor(base_url()."controller_name", "Contact")?>
<?=menu_anchor(base_url()."controller_name", "Privacy")?>
The css:
.active{background-color:#16A085;color:#fff !important;}

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