php-elisp indentation error when using function call with constant and operator

[Fred Sarron]

Binary package hint: php-elisp

Using

Ubuntu 8.04.1
GNU Emacs 22.1.1
php-elisp 1.1.0-2

It seems that when a line contain a function call , the name of a constant and an operator the indentation is broken 2 lines after and for the rest of the file.
Here is the smallest example I could find :

#!/usr/bin/php5
<?php
f(a) +1;
echo '';
       echo '';
       echo '';
       ?>

The last two calls to echo are aligned on the + operator