NEW Upgrade Stripe library to 6.43.1

htdocs/includes/stripe/stripe-php/lib/Util/CaseInsensitiveArray.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace Stripe\Util;
+
+use ArrayAccess;
+
+/**
+ * CaseInsensitiveArray is an array-like class that ignores case for keys.
+ *
+ * It is used to store HTTP headers. Per RFC 2616, section 4.2:
+ * Each header field consists of a name followed by a colon (":") and the field value. Field names
+ * are case-insensitive.
+ *
+ * In the context of stripe-php, this is useful because the API will return headers with different
+ * case depending on whether HTTP/2 is used or not (with HTTP/2, headers are always in lowercase).
+ */
+class CaseInsensitiveArray implements ArrayAccess
+{
+    private $container = array();
+
+    public function __construct($initial_array = array())
+    {
+        $this->container = array_map("strtolower", $initial_array);
+    }
+
+    public function offsetSet($offset, $value)
+    {
+        $offset = static::maybeLowercase($offset);
+        if (is_null($offset)) {
+            $this->container[] = $value;
+        } else {
+            $this->container[$offset] = $value;
+        }
+    }
+
+    public function offsetExists($offset)
+    {
+        $offset = static::maybeLowercase($offset);
+        return isset($this->container[$offset]);
+    }
+
+    public function offsetUnset($offset)
+    {
+        $offset = static::maybeLowercase($offset);
+        unset($this->container[$offset]);
+    }
+
+    public function offsetGet($offset)
+    {
+        $offset = static::maybeLowercase($offset);
+        return isset($this->container[$offset]) ? $this->container[$offset] : null;
+    }
+
+    private static function maybeLowercase($v)
+    {
+        if (is_string($v)) {
+            return strtolower($v);
+        } else {
+            return $v;
+        }
+    }
+}