I have a custom extension where I need to write information to a log file. For this I am using this code:

jimport('joomla.log.log'); // Include the log library
$priorities = JLog::ALL ^ JLog::WARNING; // exclude warning (because of deprecated)
$logFileName = 'myextension.log.php';
$logCategory = 'com_myextension';
try {
    JLog::addLogger(array('text_file' => $logFileName), $priorities, $logCategory);
    JLog::add($msg, JLog::INFO, $logCategory);
} catch (Exception $e) {
    // logging failed because of unknown reasons, no further action / attempts

This works excellent on all Joomla installs 2.x to 3.x - except for the ones which have the FTP Layer enabled.

I have read on the Joomla Dev CMS list that JLog does not support the FTP layer.

How can I deal with it? Or more specifically: how can I write my own version of JLogLoggerFormattedtext that uses FTP when that layer is enabled?


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You can override the JLogLoggerFormattedtext class with your own version in one of two ways:

System Plugin

Via a System plugin that triggers onAfterInitialise():

* Registers core library overrides.
* @return   void
public function onAfterInitialise()
    // Override /libraries/joomla/log/logger/formattedtext.php 
    JLoader::register('JLogLoggerFormattedtext', JPATH_LIBRARIES . '/custom/core-overrides/joomla/log/logger/formattedtext.php');

However, by the time onAfterInitialise() is called many core classes have already been initialized and so this method wont work. I don't know if JLogLoggerFormattedtext falls into this category or not.

Core Hack

First, obviously, core hacks are evil. But I've yet to find a working solution when the plugin method doesn't work.

Modify /ROOT/index.php and/or /ROOT/administrator/index.php (depending on if you need this modification for back-end or front-end executions. Put this code:

require_once JPATH_LIBRARIES . '/custom/core-overrides/coreOverrideAutoloader.php';
spl_autoload_register('CoreOverrideAutoloader::loader', true, true);

directly before:

require_once JPATH_BASE . '/includes/framework.php';

(both index.php files have that line)

Create /custom/core-overrides/coreOverrideAutoloader.php:

class CoreOverrideAutoloader

    public static $requested = array();
    public static $filesLoaded = array();
    public static $filesNotLoaded = array();

    public static function loader($class)
        CoreOverrideAutoloader::$requested[] = $class;

        $filename = __DIR__ . '/' . strtolower($class) . '.php';

        if (!file_exists($file))
            CoreOverrideAutoloader::$filesNotLoaded[] = $file;
            return false;
        include $file;
        CoreOverrideAutoloader::$filesLoaded[] = $file;

Then create /custom/core-overrides/jlogloggerformattedtext.php

That'll hold your modified JLogLoggerFormattedtext class:

defined('JPATH_PLATFORM') or die;


class JLogLoggerFormattedtext extends JLogLogger

Creating any other library overrides is as simple as creating additional jclassname.php files in that same folder.

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