* Creates a submit button
*
* @param string $message Text of the submit button, will be escaped
- * @param array $attributes Attributes
+ * @param array $attributes
* @return string HTML output for the submit button
*/
function submitButton( $message, $attributes = [] ) {
# Sometimes rev_len isn't populated
if ( $rev->getSize() !== null ) {
# Size is always public data
- $prevSize = isset( $this->parentLens[$row->rev_parent_id] )
- ? $this->parentLens[$row->rev_parent_id]
- : 0;
+ $prevSize = $this->parentLens[$row->rev_parent_id] ?? 0;
$sDiff = ChangesList::showCharacterDifference( $prevSize, $rev->getSize() );
$fSize = Linker::formatRevisionSize( $rev->getSize() );
$s .= ' <span class="mw-changeslist-separator">. .</span> ' . "$fSize $sDiff";