EE log sql queries to file

mysql_driver.php

<?php

	function _execute($sql)
	{
		$sql = $this->_prep_query($sql);
		
		### HACK START
		
		$is_write = preg_match('/^(insert|update|delete|alter|create|drop)/i', $sql);
		
		$ignore_tables = array(
		  'exp_stats',
		  'exp_security_hashes',
      'exp_sessions',
      'exp_cp_log',
      'exp_developer_log',
      'exp_site_bootstrap_checksums',
      'exp_zenbu_filter_cache',
      'exp_assets_index_data',
      'exp_last_activity',
      'exp_channel_entries_autosave',
		);
		
		$is_ignored = preg_match('#'.implode('|', $ignore_tables).'#', $sql);

		if ($is_write && ! $is_ignored)
		{
			$handle = fopen(FCPATH.DIRECTORY_SEPARATOR.'query-log.sql', 'a+');

			fwrite($handle, '###'.PHP_EOL.PHP_EOL.$sql.';'.PHP_EOL.PHP_EOL);

			fclose($handle);
		}
		
		### HACK END

		return @mysql_query($sql, $this->conn_id);
	}