diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-includes/IXR/class-IXR-request.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/IXR/class-IXR-request.php	Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,54 @@
+<?php
+
+/**
+ * IXR_Request
+ *
+ * @package IXR
+ * @since 1.5.0
+ */
+class IXR_Request
+{
+    var $method;
+    var $args;
+    var $xml;
+
+	/**
+	 * PHP5 constructor.
+	 */
+    function __construct($method, $args)
+    {
+        $this->method = $method;
+        $this->args = $args;
+        $this->xml = <<<EOD
+<?xml version="1.0"?>
+<methodCall>
+<methodName>{$this->method}</methodName>
+<params>
+
+EOD;
+        foreach ($this->args as $arg) {
+            $this->xml .= '<param><value>';
+            $v = new IXR_Value($arg);
+            $this->xml .= $v->getXml();
+            $this->xml .= "</value></param>\n";
+        }
+        $this->xml .= '</params></methodCall>';
+    }
+
+	/**
+	 * PHP4 constructor.
+	 */
+	public function IXR_Request( $method, $args ) {
+		self::__construct( $method, $args );
+	}
+
+    function getLength()
+    {
+        return strlen($this->xml);
+    }
+
+    function getXml()
+    {
+        return $this->xml;
+    }
+}