PHP 5 CLASSE DE LOG PARAMÉTRÉE PAR UN FICHIER XML

<?php
/**
 * Log manager class
 *
 */
class Log
{

    /**
     * Default log file
     *
     */
    const DEFAULT_LOG_FILE = 'default.xml';

    /**
     * Xml file initialization
     *
     */
    const INITIALIZATION_TEXT = "<?xml version='1.0' encoding='ISO-8859-1' standalone='yes'?><logs></logs>";

    /**
     * Default mail subject
     *
     */
    const MAIL_SUBJECT = 'Error log';


    /**
     * log type
     *
     * @var string
     */
    private $type;

    /**
     * file name
     *
     * @var string
     */
    private $file;

    /**
     * mail address
     *
     * @var string
     */
    private $mail;

    /**
     * log message list
     *
     * @var array
     */
    private $logArray = array();


    /**
     * Accessor
     *
     * @param string $type
     */
    public function setType($type)
    {
        $this -> type = $type;
    }

    /**
     * Accessor
     *
     * @return string
     */
    public function getType()
    {
        return $this -> type;
    }

    /**
     * Accessor
     *
     * @param string $file
     */
    public function setFile($file)
    {
        $this -> file = $file;
    }

    /**
     * Accessor
     *
     * @return string
     */
    public function getFile()
    {
        return $this -> file;
    }

    /**
     * Accessor
     *
     * @return array
     */
    public function getLogArray()
    {
        return $this -> logArray;
    }

    /**
     * Accessor
     *
     * @param array $array
     */
    public function setLogArray( array $array )
    {
        $this -> logArray = $array;
    }

    /**
     * Accessor
     *
     * @return string
     */
    public function getMail()
    {
        return $this -> mail;
    }

    /**
     * Accessor
     *
     * @param string $mail
     */
    public function setMail($mail)
    {
       $this -> mail = $mail;
    }

    /**
     * Constructor
     *
     * @param string $type
     */
    public function __construct($type = 'udefined')
    {
        $this -> type = $type;

        //get log file from xml config
        $xml = simplexml_load_file('logConfig.xml');
        $xpathResult = (array) $xml -> xpath("/logs/log[type='" . $type . "']/file");
        $file = (string) $xpathResult[0];

        if (trim($file) !='')
            $this -> file = $file;
        else
            $this -> file = self::DEFAULT_LOG_FILE;

        //get mail from xml config
        $xpathResult = (array) $xml -> xpath("/logs/log[type='" . $type . "']/mail");
        $mail = (string) $xpathResult[0];

        if (trim($mail) !='')
            $this -> mail = $mail;

    }

    /**
     * Write a log message in xml file
     *
     * @param string $logMessage
     */
    public function write($logMessage)
    {
        if (!file_exists($this -> file) )
        {
            //if not exists -> creat
            $file = fopen($this -> file, 'w');
            fputs($file, self::INITIALIZATION_TEXT);
            fclose($file);
        }

        //xml building
        $xml = simplexml_load_file($this -> file);
        $xml->addChild('log');
        $newNodeIndex = count($xml -> log) - 1;
        $xml-> log[$newNodeIndex] ->addChild('type', $this -> type);
        $xml-> log[$newNodeIndex] ->addChild('date', date('d-m-Y H:i:s'));
        $xml-> log[$newNodeIndex] -> addChild('message', $logMessage);

        //log array building
        $this -> logArray[] = date('d-m-Y H:i:s') . " " . $this -> type . " : " . $logMessage;

        //write xml in file
        $handle = fopen($this -> file, 'w+');
        fputs($handle, $xml->asXML());
        fclose($handle);
    }

    /**
     * Send a mail : see logConfig.xml
     * only if mail is set in xml file
     *
     */
    public function sendMail()
    {
        if( isset($this -> mail))
        {

            $mailText = '';

            foreach ($this -> logArray as $log)
                $mailText .= $log . "\n";

            if( trim($mailText)!='' )
                mail($this -> mail, self::MAIL_SUBJECT, $mailText);
        }
    }


    /**
     * Desctructor
     *
     */
    public function __destruct()
    {
        $this -> sendMail();
    }


}
?>