PHP 7.3: Trailing Commas - syntax error, unexpected ')'

If you use a trailing comma in Arrays before PHP 7.3 the following error occurs:

To turn this behavior on/off in PhpStorm:

EditorCode StylePHPCode ConversionArray Declaration StyleAdd a comma after last element in multiline array.

add-a-comma-after-last-element-in-multiline-array.png