id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
22342	"WP_DEBUG ""undefined index"" notices in get_metadata() for empty arrays"	doublesharp		"When the WP_DEBUG constant is set, calling get_metadata() in /wp-includes/meta.php with $single==true can cause ""undefined index"" notices when the meta data value is an empty array. As null is an acceptable return value for this function, silencing the notice with @ will remove noise when debugging without the overhead of checking the array length or that the 0 index isset()."	enhancement	new	normal	Awaiting Review	Warnings/Notices	3.1	minor		has-patch needs-testing dev-feedback 2nd-opinion