My HTML code was
<li >
<a href="<?php echo base_url('admin/uploadSales'); ?>" id="uploadsales">
<i class="fa fa-dashboard fa-lg"></i> Upload Sales
</a>
</li>
and my php code to disable anchor tag is
<?php
$roleid=$this->session->userdata('roleid');
if($roleid === '1')
{
echo '<script> $("#uploadsales").prop("disabled", true); </script>';
</script>';
}
?>
I have to used same code to disable button in php without codeigniter it is worked