--- /dev/null
+<?php
+
+namespace Consolidation\Config\Loader;
+
+/**
+ * Load configuration files.
+ */
+abstract class ConfigLoader implements ConfigLoaderInterface
+{
+ protected $config = [];
+ protected $source = '';
+
+ public function getSourceName()
+ {
+ return $this->source;
+ }
+
+ protected function setSourceName($source)
+ {
+ $this->source = $source;
+ return $this;
+ }
+
+ public function export()
+ {
+ return $this->config;
+ }
+
+ public function keys()
+ {
+ return array_keys($this->config);
+ }
+
+ abstract public function load($path);
+}