archived-presentations/slides/debugging/error_track_php2.xml

<slide title="debug_backtrace() Example">

<example fontsize="1.8em" title="Sample Output"><![CDATA[Array
(
    [0] => Array
        (
            [file] => script.php
            [line] => 18
            [function] => query_wrapper
            [args] => Array
                (
                    [0] => SELECT * FROM msg WHERE id=abc
                )
        )

    [1] => Array
        (
            [file] => script.php
            [line] => 25
            [function] => get_message
            [args] => Array
                (
                    [0] => abc
                )
        )

    [2] => Array
        (
            [file] => script.php
            [line] => 28
            [function] => foo
            [args] => Array
                (
                )
        )
)]]></example>

<example title="Practical Application" fontsize="2em" type="php" filename="error_track_ex.php" />

<example fontsize="1.8em" title="End Result"><![CDATA[script.php:41 foo()
script.php:38 get_message(abc)
script.php:31 query_wrapper(SELECT * FROM msg WHERE id=abc)]]></example>

</slide>