WordPress MonoLog integration

composer.json

{
    "require": {
        "monolog/monolog": "1.1.*"
    }
}

mlog.php

<?php

/*
Plugin Name: mlog 
Plugin URI: 
Description: Monolog WordPress Plugin
Version: 1.0
Author: Mavida
Author URI: 
License: GPLv2 or later
*/

/*
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

require_once dirname(__FILE__) . '/vendor/autoload.php';


use Monolog\Logger;
use Monolog\Handler\StreamHandler;

$Mlog = new Logger("WordPressLog");
add_action( 'init', 'Monolog_setup' );

/**
 * Init function and definition 
 * 
 * 
 * @global Logger $Mlog 
 */
function Monolog_setup() {
    global $Mlog;
    
    $default = array(
        'FilePath' => dirname(__FILE__) . '/Mlog.log',
        'QueryLog' => true,
        
        );
        
    $Mlog_Options =  get_option( "Mlog_Options", $default );
    
    // create a log channel
    $Mlog->pushHandler(new StreamHandler( $Mlog_Options["FilePath"] ));
    
    if ( $Mlog_Options["QueryLog"] ) {
        add_filter("query", "Monolog_QueryLog"  );
        }
        
}

/**
 *
 * @param type $query
 */
function Monolog_QueryLog($query) {
    global $Mlog;
     
    $default = array(
        'QueryLog_filter' => null,        
        );
    
    $Mlog_Options =  get_option( "Mlog_Options", $default );    
  
    //if ( preg_match( '/^\s*(insert|update|delete) /i', $query ) ) {
    //if ( !preg_match( '/\b(wp_options|wp_terms|wp_usermeta|revision)\b/i', $query ) ) {

    if ( is_null( $Mlog_Options["QueryLog_filter"]) ){
        
         $Mlog->addInfo( $query  );
     
        
     } else {
         if ( preg_match( '/^\s*(' . $Mlog_Options["QueryLog_filter"] . ') /i', $query ) ) {
             $Mlog->addInfo( $query  );
         }
         
         
     }
      
    
  return $query;
}