feat: add new method for str buffer

Author: inhere

src/Str/StrBuffer.php

@@ -111,9 +111,11 @@ public function reset(): void
     }
 
     /**
-     * clear data
+     * Get and clear data
+     *
+     * @return string
      */
-    public function clear(): string
+    public function getAndClear(): string
     {
         $strings = $this->parts;
         // clear
@@ -122,6 +124,14 @@ public function clear(): string
         return implode($strings);
     }
 
+    /**
+     * clear data
+     */
+    public function clear(): string
+    {
+        return $this->getAndClear();
+    }
+
     /**
      * @return string[]
      */