function in php to check for conercutive values code example
Example 1: check null in_array php
if (!empty($data_days) && in_array(1, $data_days, true)){
Example 2: php ?? vs ?:
<?php
var_dump(null ?? '`null` is null');
var_dump(null ?: '`null` is empty');
var_dump(true ?? '`true` is null');
var_dump(true ?: '`true` is empty');
var_dump(false ?? '`false` is null');
var_dump(false ?: '`false` is empty');
var_dump('' ?? 'empty string is null');
var_dump('' ?: 'empty string is empty');
var_dump(empty(null) ?: '`null` is not empty');