id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	difficulty
4483	various undefined variable errors	mrclay		"I inspected the engine directory with PhpStorm and found these undefined var errors. I checked all cases for false positives (e.g. following use of extract). 

Many can be fixed by simply replacing the variable with `null` in the function call argument list, or, if you want to retain the parameter name, `func($name = null);`. This won't throw a NOTICE.

https://github.com/Elgg/Elgg/blob/1.8/engine/lib/statistics.php#L98 $offset
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/export.php#L121 $to_be_serialized
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/pagehandler.php#L132 $title
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.7.php#L228 $pagination
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.7.php#L593 $fullview
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.7.php#L785 $container_guid
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.7.php#L1034 $fullview
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L1107 $container_guid
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L1180 $pagination
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L1362 $site_guid
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L1438 $owner
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L2281 $entity_type
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L2305 $order_by
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L2519 $event
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L2543 $obj_query
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L2653 $full_view
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L3448 $order_by
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L3506 $timelower / $timeupper
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L3528 $timelower / $timeupper
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L3551 $timelower / $timeupper
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L3575 $timelower / $timeupper
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L3932 $annotation_id
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/deprecated-1.8.php#L3979 $guid
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/configuration.php#L482 $msg
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/admin.php#L574 $title
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/entities.php#L1712 $row (several cases)
https://github.com/Elgg/Elgg/blob/1.8/engine/lib/entities.php#L1771 $msg"	Defect	closed	low	Elgg 1.8.6	Core	1.8.3	trivial	fixed		brett@…