Herping the derp

src/Writer/Ini.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace Siteworx\Config\Writer;
+
+/**
+ * Ini Writer.
+ *
+ * @package Config
+ * @author  Jesus A. Domingo <jesus.domingo@gmail.com>
+ * @author  Hassan Khan <contact@hassankhan.me>
+ * @author  Filip Š <projects@filips.si>
+ * @link    https://github.com/noodlehaus/config
+ * @license MIT
+ */
+class Ini extends AbstractWriter
+{
+    /**
+     * {@inheritdoc}
+     * Writes an array to a Ini string.
+     */
+    public function toString(array $config, bool $pretty = true): string
+    {
+        return $this->toINI($config);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getSupportedExtensions(): array
+    {
+        return ['ini'];
+    }
+
+    /**
+     * Converts array to INI string.
+     *
+     * @param array $arr    Array to be converted
+     * @param array $parent Parent array
+     *
+     * @return string Converted array as INI
+     *
+     * @see https://stackoverflow.com/a/17317168/6523409/
+     */
+    protected function toINI(array $arr, array $parent = []): string
+    {
+        $converted = '';
+
+        foreach ($arr as $k => $v) {
+            if (is_array($v)) {
+                $sec = array_merge((array) $parent, (array) $k);
+                $converted .= '[' . implode('.', $sec) . ']' . PHP_EOL;
+                $converted .= $this->toINI($v, $sec);
+            } else {
+                $converted .= $k . '=' . $v . PHP_EOL;
+            }
+        }
+
+        return $converted;
+    }
+}