Ciao: studente<pre>
Array
(
    [0] => Array
        (
            [file] => /home/amato/public_www/teaching/old/labdati05/php/backtrace_example.php
            [line] => 12
            [function] => a_test
            [args] => Array
                (
                    [0] => studente
                )

        )

    [1] => Array
        (
            [file] => /home/amato/public_www/teaching/old/labdati05/php/backtrace_example.php
            [line] => 15
            [function] => b_test
            [args] => Array
                (
                )

        )

)
</pre>