When you have checked Tools > Options > Editor > Formatting > Alignment > Assignment, code like

$a = 1;
$abc = 2;
exampleFunction();
$foobar = 'baz';
$someVariable = 3;

will be formatted as

$a            = 1;
$abc          = 2;
exampleFunction();
$foobar       = 'baz';
$someVariable = 3;

Instead the formatter should only align contiguous assignments. I.e. the result would then be:

$a   = 1;
$abc = 2;
exampleFunction();
$foobar       = 'baz';
$someVariable = 3;

This is especially relevant when there are more than one non-assignment statements in between.

Sebastian