set days of week using bitwise operators

app/Facades/Utils.php

@@ -16,4 +16,28 @@ class Utils extends Facade
 
         return $dtF->diff($dtT)->format($format);
     }
+
+    /**
+     * Bitwise operator for setting days of week to integer field
+     * @param int $datefield initial datefield
+     * @param array $day_enums Array of values from config("enum.days")
+     * @return int
+     */
+    public static function setDays(int $datefield, array $day_enums) {
+        foreach($day_enums as $day) {
+            $datefield |= $day;
+        }
+
+        return $datefield;
+    }
+
+    /**
+     * Bit check if a day exists within a integer bitfield
+     * @param int $datefield datefield from database
+     * @param int $day_enum Value from config("enum.days")
+     * @return bool
+     */
+    public static function hasDay(int $datefield, int $day_enum) {
+        return ($datefield & $day_enum) === $datefield;
+    }
 }

config/enums.php

@@ -26,5 +26,15 @@ return [
         'MOGAS' => 2,
     ],
 
+    'days' => [
+        'MONDAY'    => 1,
+        'TUESDAY'   => 2,
+        'WEDNESDAY' => 4,
+        'THURSDAY'  => 8,
+        'FRIDAY'    => 16,
+        'SATURDAY'  => 32,
+        'SUNDAY'    => 64
+    ],
+
 ];
 

tests/UtilsTest.php

@@ -0,0 +1,13 @@
+<?php
+
+use App\Facades\Utils;
+
+class UtilsTest extends TestCase
+{
+    public function setUp() {
+    }
+
+    public function testSecondsToTime() {
+        print_r(Utils::secondsToTime(3600));
+    }
+}