<?php
$week_days=[
1=>'Пн',
2=>'вт',
3=>'ср',
4=>'чт',
5=>'пт',
6=>'сб',
7=>'вс',
];
$days="123567";
PD9waHAKCiR3ZWVrX2RheXM9WwoJMT0+J9Cf0L0nLAoJMj0+J9Cy0YInLAoJMz0+J9GB0YAnLAoJND0+J9GH0YInLAoJNT0+J9C/0YInLAoJNj0+J9GB0LEnLAoJNz0+J9Cy0YEnLAoJXTsKCQoJJGRheXM9IjEyMzU2NyI7CgkkZGF5c19hcnI9c3RyX3NwbGl0KCRkYXlzLDEpOwoJCgkKCXByaW50X3IoYXJyYXlfaW50ZXJzZWN0X2tleSgkd2Vla19kYXlzLGFycmF5X2ZsaXAoJGRheXNfYXJyKSkpOw==