Writing Logs

In the configuration file e.g. appname/etc/appname-ini.php

Add the following lines for log in config

<?php
$config = array(
    'url' => '',
    'debug' => false,


    'log_facility'          => 'default',
    'log_level'             => 'warning',
    'log_option'            => 'pid,function,pos',
    'log_filter_do'         => '',
    'log_filter_ignore'     => 'Undefined index.*%%.*tpl',


    'session' => array(
       'handler'                => 'files',
       'path'                   => '../tmp', //THIS IS IF YOU WANT TO SET THE SESSION FILES PATH
       'check_remote_addr'      => true,
    ),

 'log' => array(
     'file' => array(
         'level'           => 'notice',
         'option'          => 'pid,function,pos',
         //'filter_do'     => '',
         //'filter_ignore' => 'Undefined index.*%%.*tpl',
         'file'            => '../tmp/error.log', //Complete path of the error file
  //     'dir'             => '/tmp/', //DONOT MENTION DIR here
         'mode'            => 666, //SET THE MODE TO 666 for writable and NOT 777
         ),
     ),
  );

Now to write to a log

<?php
function prepare()
{

    $logger = $this->backend->getLogger();
    $logger->log(LOG_NOTICE, "Testing Dir. File Should be Created in appname/tmp/error.log");

    //ALSO a session file sess_**** should also be created in appname/tmp/sess_*****
    $this->session->start();

}