The PEAR coding standard says in https://pear.php.net/manual/en/standards.funcalls.php

Using fluent application programming interfaces often leads to many concatenated function calls. Those calls may be split onto several lines. When doing this, all subsequent lines are indented by 4 spaces and begin with the "->" arrow.

<?php
$someObject->someFunction("some", "parameter")
    ->someOtherFunc(23, 42)
    ->andAThirdFunction();
?> 

On my emacs 27.1 with php-mode 20230423.1446 the second method call arrow is directly below the previous arrow (wrong):

        $pages = $dbOld->createQueryBuilder()
                       ->select('*')

Setting php-mode-lineup-cascaded-calls to nil aligns the -> with the = (wrong):

        $pages = $dbOld->createQueryBuilder()
               ->select('*')

When enabling the pear coding style, it should be indented 4 spaces:

        $pages = $dbOld->createQueryBuilder()
            ->select('*')

(Related to #237, which was the same problem with PSR2)