Logger

Logger.php

<?php

namespace console\components;

/**
 * Class Logger
 * The component of logging the script execution. Good for console applications
 * @package console\components
 */
class Logger {

    /**
     * @var string
     */
    public $logname;

    /**
     * @var string
     */
    public $log_dir;

    /**
     * @var string
     */
    public $string;

    /**
     * @var int
     */
    public $logsize = 1048576; //1 MB

    /**
     * Logger constructor.
     * @param string $logname
     * @param string $log_dir
     */
    public function __construct($logname = 'log.log', $log_dir = 'logs/')
    {
        $this->log_dir = $log_dir;
        $this->logname = $logname;
    }

    /**
     * The method of logging a string.
     * Gets a string, adds time to it, and writes it to the log file.
     * If you need to output a logical string, you must pass the second parameter to true.
     * @example $log= new Logger(); $log->Log('hello world', true);
     * @param $string
     * @param bool $print
     * @return bool
     */
    public function Log ($string ,$print=false) {

        $this->string = $string;

        if (!file_exists ($this->getLogDir())) {
            mkdir ($this->getLogDir(), 0755);
        }

        if (!$this->ValidateString()) {

            $this->ErrorLogWrite('Ошибка, валидация строки не пройдена');
            return false;

        }

        $log = $this->Logname();

        $this->string  = date('Y-m-d H:i:s') . '| ' . $this->string . "|" . PHP_EOL;

        if(file_put_contents($log, $this->string, LOCK_EX | FILE_APPEND)) {
            return true;
        }

        if ($print === true) {

            echo $this->string;

        }

    }


    private function Logname() {

        $log = $this->getLogDir() . $this->logname;

        if (file_exists($log) && filesize($log) > $this->logsize) {

            $countlog = $this->logswitcher()+1;

            if($countlog === false) {
                $countlog = 1;
            }

            $old_log = $log . '.' . $countlog;

            rename($log, $old_log);
        }

        return $log;

    }

    private function logswitcher()
    {
        $logFiles = scandir($this->getLogDir());

        $countsArray = array();

        foreach($logFiles as $file) {

            if($file != '.' || $file != '..') {
                if(preg_match('#(\d+)$#', $file, $match)) $countsArray[] = $match[1];
            }

        }


        return !empty($countsArray) ? max($countsArray) : false;

    }

    private function ValidateString() {

        if (empty($this->string)) {
            $this->ErrorLogWrite('Ошибка, обязательный параметр пустой.');
            return false;

        }
        elseif (is_array($this->string) || is_object($this->string)) {
            $this->ErrorLogWrite('Ошибка, в параметр string передан массив или объект.');
            return false;

        }
        else {
            return true;
        }

    }

    private function ErrorLogWrite($errorstring) {

        $errorlog = 'error.log';

        if(file_put_contents($errorlog, $errorstring, LOCK_EX | FILE_APPEND)) {
            return true;
        }else {
            return false;
        }


    }

    /**
     * @return string
     */
    public function getLogDir() {

        return $this->log_dir;
    }


}