Using `else if` instead of `elseif`

diff --git a/wcfsetup/install/files/lib/system/package/plugin/MenuItemPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/MenuItemPackageInstallationPlugin.class.php
index 8304ef03ad229d19249d0693d4988b2d9a24ab48..1f946aa6c659522bb5218023c44e2c424a780a21 100644 (file)
--- a/wcfsetup/install/files/lib/system/package/plugin/MenuItemPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/MenuItemPackageInstallationPlugin.class.php
@@ -131,7 +131,7 @@ class MenuItemPackageInstallationPlugin extends AbstractXMLPackageInstallationPl
                if ($pageID === null && empty($externalURL)) {
                        throw new SystemException("The menu item '" . $data['attributes']['identifier'] . "' must either have an associated page or an external url set.");
                }
-               elseif ($pageID !==  null && !empty($externalURL)) {
+               else if ($pageID !==  null && !empty($externalURL)) {
                        throw new SystemException("The menu item '" . $data['attributes']['identifier'] . "' can either have an associated page or an external url, but not both.");
                }