1 files changed, 19 insertions, 0 deletions
diff --git a/phpBB/phpbb/install/module/requirements/task/check_server_environment.php b/phpBB/phpbb/install/module/requirements/task/check_server_environment.php
index 62485a2097..29f9777747 100644
--- a/phpBB/phpbb/install/module/requirements/task/check_server_environment.php
+++ b/phpBB/phpbb/install/module/requirements/task/check_server_environment.php
@@ -71,6 +71,9 @@ class check_server_environment extends \phpbb\install\task_base
 		// Check for JSON support
 		$this->check_json();
 
+		// XML extension support check
+		$this->check_xml();
+
 		// Check for dbms support
 		$this->check_available_dbms();
 
@@ -155,6 +158,22 @@ class check_server_environment extends \phpbb\install\task_base
 	}
 
 	/**
+	 * Checks whether or not the XML PHP extension is available (Required by the text formatter)
+	 */
+	protected function check_xml()
+	{
+		if (class_exists('DOMDocument'))
+		{
+			$this->set_test_passed(true);
+			return;
+		}
+
+		$this->response_helper->add_error_message('PHP_XML_SUPPORT', 'PHP_XML_SUPPORT_EXPLAIN');
+
+		$this->set_test_passed(false);
+	}
+
+	/**
 	 * Check if any supported DBMS is available
 	 */
 	protected function check_available_dbms()