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Editorial Team
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Asked: 2026-05-23T08:06:03+00:00

In my web application using codeigniter. I am trying to use base_url() function but

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In my web application using codeigniter. I am trying to use base_url() function but it shows empty results. I have also used autoload helper through autoload file, but then too it doesn’t seem to work. Also I had defined base constants but all in vain.

<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title><?php echo $title; ?></title>        
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
        <link rel="stylesheet" href="<?php echo base_url();?>/css/template/default.css" type="text/css" />
        <script type="text/javascript">
            //<![CDATA[
            base_url = '<?= base_url();?>';
            //]]>
        </script>
    </head>
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1 Answer

  1. Editorial Team

    In order to use base_url(), you must first have the URL Helper loaded. This can be done either in application/config/autoload.php (on or around line 67):

    $autoload['helper'] = array('url');

    Or, manually:

    $this->load->helper('url');

    Once it’s loaded, be sure to keep in mind that base_url() doesn’t implicitly print or echo out anything, rather it returns the value to be printed:

    echo base_url();

    Remember also that the value returned is the site’s base url as provided in the config file. CodeIgniter will accomodate an empty value in the config file as well:

    If this (base_url) is not set then CodeIgniter will guess the protocol, domain and path to your installation.

    application/config/config.php, line 13

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