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vendor/fguillot/picofeed/lib/PicoFeed/Encoding/Encoding.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace PicoFeed\Encoding;
+
+/**
+ * Encoding class.
+ */
+class Encoding
+{
+    public static function convert($input, $encoding)
+    {
+        if ($encoding === 'utf-8' || $encoding === '') {
+            return $input;
+        }
+
+        // suppress all notices since it isn't possible to silence only the
+        // notice "Wrong charset, conversion from $in_encoding to $out_encoding is not allowed"
+        set_error_handler(function () {}, E_NOTICE);
+
+        // convert input to utf-8 and strip invalid characters
+        $value = iconv($encoding, 'UTF-8//IGNORE', $input);
+
+        // stop silencing of notices
+        restore_error_handler();
+
+        // return input if something went wrong, maybe it's usable anyway
+        if ($value === false) {
+            return $input;
+        }
+
+        return $value;
+    }
+}