create windows tasks from PHP

WindowsTask.php

<?php
/*
 * This class will be responsible for create/delete windows tasks
 * Sample code:
 * 
    $task = new WindowsTask('my monthly task', 'USERNAME', 'PASSWORD");
    $task->schedule_type = WindowsTask::ScheduleType_MONTHLY;
    $task->start_time    = '12:41';
    $task->command       = 'notepad';
    $task->day           = '30';

    if ($task->create()) {
        echo 'registered, check the win scheduler';
    } else {
        echo 'not created';
    }
 * 
 */
class WindowsTask {
    // schedule Type
    //const ScheduleType_DAILY    = 'MINUTE';
    //const ScheduleType_DAILY    = 'HOURLY';
    const ScheduleType_DAILY    = 'DAILY';
    const ScheduleType_WEEKLY   = 'WEEKLY';
    const ScheduleType_MONTHLY  = 'MONTHLY';
    
    // task name
    private $_name;
    
    // schedule type
    public $schedule_type;
    
    // task command
    public $command;
    
    // user
    public $user;
    
    // pass
    public $pass;
    
    // start_time  HH:MM 24-hour format
    public $start_time;
    
    // start date
    public $start_date;
    
    // day of the task
    public $day;
    
    // name prefix
    private $_prefix = "Vinus_";
    
    // constructor
    public function __construct($name=false, $windows_user, $windows_pass) {
        // set user & pass
        $this->user = $windows_user;
        $this->pass = windows_pass;
        
        // set name
        if ($name) {
            $this->setName($name);
        }
    }
    
    /*
     * set command name
     */
    public function setName($name) {
        $this->_name = $this->_prefix . $name;
    }
    
    /*
     * execute command, check and return
     */
    private function _execute_command($cmd) {
        $output = '';
        $return = '';
        exec($cmd, $output, $return);
        
        // check if succeeded
        if (isset($output[0]) && strpos($output[0], 'SUCCESS') === 0) {
            return true;
        }
        
        return false;
    }
    
   /*
    * create windows task
    * must set name, schedule_type, ..etc before calling this method
    */
    public  function create() {
        // day option (only with weekly and monthly schedule type)
        $day_opt = '';
        
        if ($this->schedule_type == self::ScheduleType_WEEKLY ||
            $this->schedule_type == self::ScheduleType_MONTHLY) {
            
            $day_opt = '/D @day';
        }
        
        // the complete command for creating windows task
        $cmd = 'schtasks /create /TN "@name" /TR "@command" /ST @start_time /sd @start_date /ru @user /SC @sch_type ' . $day_opt;
        
        $replace = [
            '@name'         => $this->_name,
            '@command'      => $this->command,
            '@user'         => $this->user,
            '@start_time'   => $this->start_time,
            '@sch_type'     => $this->schedule_type,
            '@day'          => $this->day,
            '@start_date'   => $this->start_date
        ];
        
        // replace the values
        $cmd = str_replace(array_keys($replace), array_values($replace), $cmd);
        //dd($cmd);
        // execute command
        return $this->_execute_command($cmd);
    }
    
    /*
     * delete
     * must set name before calling this method
     */
    public function delete() {
        $cmd = 'schtasks /DELETE /F /TN "@name"';
        $cmd = str_replace('@name', $this->_name, $cmd);
        
        // execute command
        return $this->_execute_command($cmd);
    }
    
    /*
     * return array of schedule types available
     */
    public static function list_schedule_types() {
        return [
            self::ScheduleType_DAILY    => trans('win_tasks.type_daily'),
            self::ScheduleType_WEEKLY   => trans('win_tasks.type_weekly'),
            self::ScheduleType_MONTHLY  => trans('win_tasks.type_monthly')
        ];
    }
    
    /*
     * list days used for weekly schedule type
     */
    public static function list_week_days() {
        // days and their keys on locale file
        $days = [
            'SAT'   => trans('days.sat'),
            'SUN'   => trans('days.sun'),
            'MON'   => trans('days.mon'),
            'TUE'   => trans('days.tues'),
            'WED'   => trans('days.wednes'),
            'THU'   => trans('days.thurs'),
            'FRI'   => trans('days.fri')
        ];
        
        return $days;
    }
}