diff --git a/README.md b/README.md
index fb2fede..6615fe9 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@
 - [Bash](languages/bash.sh)
 - [JavaScript](languages/javascript.md)
 - [Go](languages/golang.go)
-- [Php](languages/php.php)
+- [PHP](languages/php.php)
 - [VimScript](languages/vimscript.md)
 - [Python](languages/python.md)
 - [Lua](languages/lua.lua)
diff --git a/languages/php.php b/languages/php.php
index 4449322..b55a0f5 100644
--- a/languages/php.php
+++ b/languages/php.php
@@ -6,7 +6,7 @@
  */
 class NormalClass extends AbstractClassName implements InterfaceName
 {
-
+    // 引用 Trait (为 PHP 提供多继承的能力，可理解为代码复制)
     use TraitName;
 
     // --> 类属性类型 <--
@@ -247,3 +247,26 @@ abstract class AbstractClassName
     abstract function abstractFunction(Type $var = null): Type;
 
 }
+
+/**
+ * Trait
+ * 提供代码复用能力、多继承能力
+ */
+trait Logger
+{
+	public function log($message)
+	{
+		return $message;
+	}
+}
+
+class WriteLog
+{
+    use Logger;
+    
+    public function main()
+    {
+        return $this->log();
+    }
+}
+