📝 Fixed wrong PHP requirement in readme

📝 Improved examples in readme
💥 Changed return values of trait methods (makes more sense to me like this)

Author: Fanmade

README.md

@@ -7,7 +7,7 @@ Updated after reading this blog post: https://aaronfrancis.com/2021/bitmasking-i
 I just used it in Laravel so far, but you should be able to use it anywhere else with minor modifications.
 
 ## PHP Version
-Version v2.* requires PHP 8+. If you're stuck to an older version, please use v1.* 
+Version v2.* requires PHP 7.4+. If you're stuck to an older version, please use v1.* 
 
 ## Installation
 
@@ -89,20 +89,14 @@ Maybe you want to define that in a constant or variable.
 
 To make your life easier, I recommend to use custom getters and setters.
 ```php
-
-    /**
-     * @param bool $sent
-     * @return bool
-     */
-    public function setSentAttribute($sent = true)
+    public function setSentAttribute($sent = true): self
     {
-        return $this->setFlag('status', self::MESSAGE_SENT, $sent);
+        $this->setFlag('status', self::MESSAGE_SENT, $sent);
+        
+        return $this;
     }
 
-    /**
-     * @return bool
-     */
-    public function getSentAttribute()
+    public function getSentAttribute(): bool
     {
         return $this->getFlag('status', self::MESSAGE_SENT);
     }

src/BitwiseFlagTrait.php

@@ -15,21 +15,21 @@ protected function getFlag(string $name, int $flag): bool
         return ($this->$name & $flag) === $flag;
     }
 
-    protected function setFlag(string $name, int $flag, bool $value): self
+    protected function setFlag(string $name, int $flag, bool $value): bool
     {
         if ($value) {
             $this->$name |= $flag;
         } else {
             $this->$name &= ~$flag;
         }
-        
-        return $this;
+
+        return ($this->$name & $flag) === $flag;
     }
 
-    protected function toggleFlag(string $name, int $flag): self
+    protected function toggleFlag(string $name, int $flag): bool
     {
         $this->$name ^= $flag;
 
-        return $this;
+        return $this->getFlag($name, $flag);
     }
 }