Merge branch 'bugfix' into dev

.travis.yml

-sudo: false
-
+os: linux
 dist: trusty
 
 language: php
 
 php:
   - '5.4'
-  - '5.5'
   - '5.6'
   - '7.0'
   - '7.1'

qa-include/app/limits.php

@@ -254,26 +254,26 @@ function qa_ipv6_expand($ip)
 		$ipv6_wildcard = true;
 	}
 	if ($ipv6_wildcard) {
-		$wildcards = explode(":", $ip);
+		$wildcards = explode(':', $ip);
 		foreach ($wildcards as $index => $value) {
 			if ($value == "*") {
 				$wildcards_matched[] = count($wildcards) - 1 - $index;
 				$wildcards[$index] = "0";
 			}
 		}
-		$ip = implode($wildcards, ":");
+		$ip = implode(':', $wildcards);
 	}
 
 	$hex = unpack("H*hex", @inet_pton($ip));
 	$ip = substr(preg_replace("/([0-9A-Fa-f]{4})/", "$1:", $hex['hex']), 0, -1);
 
 	if ($ipv6_wildcard) {
-		$wildcards = explode(":", $ip);
+		$wildcards = explode(':', $ip);
 		foreach ($wildcards_matched as $value) {
 			$i = count($wildcards) - 1 - $value;
 			$wildcards[$i] = "*";
 		}
-		$ip = implode($wildcards, ":");
+		$ip = implode(':', $wildcards);
 	}
 
 	return $ip;

qa-include/app/post-update.php

@@ -93,7 +93,7 @@ function qa_question_set_content($oldquestion, $title, $content, $format, $text,
 				qa_post_unindex($comment['postid']);
 		}
 
-		if (@$closepost['parentid'] == $oldquestion['postid'])
+		if (isset($closepost) && $closepost['parentid'] == $oldquestion['postid'])
 			qa_post_unindex($closepost['postid']);
 
 		qa_db_post_set_type($oldquestion['postid'], 'Q_QUEUED');
@@ -348,7 +348,7 @@ function qa_question_set_status($oldquestion, $status, $userid, $handle, $cookie
 			qa_post_unindex($comment['postid']);
 	}
 
-	if (@$closepost['parentid'] == $oldquestion['postid'])
+	if (isset($closepost) && $closepost['parentid'] == $oldquestion['postid'])
 		qa_post_unindex($closepost['postid']);
 
 	$setupdated = false;
@@ -426,7 +426,7 @@ function qa_question_set_status($oldquestion, $status, $userid, $handle, $cookie
 			}
 		}
 
-		if ($closepost['parentid'] == $oldquestion['postid']) {
+		if (isset($closepost) && $closepost['parentid'] == $oldquestion['postid']) {
 			qa_post_index($closepost['postid'], $closepost['type'], $oldquestion['postid'], $closepost['parentid'], null,
 				$closepost['content'], $closepost['format'], qa_viewer_text($closepost['content'], $closepost['format']), null, $closepost['categoryid']);
 		}
@@ -505,7 +505,7 @@ function qa_question_set_category($oldquestion, $categoryid, $userid, $handle, $
 			$otherpostids[] = $comment['postid'];
 	}
 
-	if (@$closepost['parentid'] == $oldquestion['postid'])
+	if (isset($closepost) && $closepost['parentid'] == $oldquestion['postid'])
 		$otherpostids[] = $closepost['postid'];
 
 	qa_db_posts_set_category_path($otherpostids, $newpath);