Add method to get property as string

src/EnvReader/GenericConfig.php

@@ -94,6 +94,28 @@ abstract class GenericConfig {
         return $this->properties->get($name);
     }
 
+    /**
+     * Get a property value as a string
+     *
+     * @param string      $name    The property name
+     * @param string|null $default The default value if property is not set
+     *                             Raise an exception if property is not set AND $default is Null
+     *
+     * @return string The property value
+     *
+     * @throws UnexpectedValueException If property is not set AND $default is Null
+     * @throws RangeException If the property can't be cast to a boolean
+     *
+     * @noinspection PhpUnused
+     */
+    public function getPropertyAsString (string $name, ?string $default = null): string {
+        $value = $this->getProperty($name, $default);
+        if (!is_string($value) || !is_object($value) || method_exists($value, '__ToString')) {
+            throw new RangeException('The "' . $name . '" property is not a valid string : ' . $value);
+        }
+
+        return (string)$value;
+    }
     /**
      * Get a property value as a boolean
      *