API: Add isset() to avoid PHP warning

Bug: T120075
Change-Id: I8e4ac665c262e6f889abba24eb2beb4fd5a76d1b

diff --git a/includes/api/ApiFeedWatchlist.php b/includes/api/ApiFeedWatchlist.php
index 77a3a21..c841d83 100644 (file)
--- a/includes/api/ApiFeedWatchlist.php
+++ b/includes/api/ApiFeedWatchlist.php
@@ -265,7 +265,9 @@ class ApiFeedWatchlist extends ApiBase {
                                if ( !isset( $p[ApiBase::PARAM_HELP_MSG] ) ) {
                                        $p[ApiBase::PARAM_HELP_MSG] = "apihelp-query+watchlist-param-$from";
                                }
-                               if ( is_array( $p[ApiBase::PARAM_TYPE] ) && isset( $p[ApiBase::PARAM_HELP_MSG_PER_VALUE] ) ) {
+                               if ( isset( $p[ApiBase::PARAM_TYPE] ) && is_array( $p[ApiBase::PARAM_TYPE] ) &&
+                                       isset( $p[ApiBase::PARAM_HELP_MSG_PER_VALUE] )
+                               ) {
                                        foreach ( $p[ApiBase::PARAM_TYPE] as $v ) {
                                                if ( !isset( $p[ApiBase::PARAM_HELP_MSG_PER_VALUE][$v] ) ) {
                                                        $p[ApiBase::PARAM_HELP_MSG_PER_VALUE][$v] = "apihelp-query+watchlist-paramvalue-$from-$v";