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16 years ago
I like the output of debug_print_backtrace() but I sometimes want it as a string.



bortuzar's solution to use output buffering is great, but I'd like to factorize that into a function.  Doing that however always results in whatever function name I use appearing at the top of the stack which is redundant.



Below is my noddy (simple) solution.  If you don't care for renumbering the call stack, omit the second preg_replace().



<?php

    function debug_string_backtrace() {

        ob_start();

        debug_print_backtrace();

        $trace = ob_get_contents();

        ob_end_clean();



        // Remove first item from backtrace as it's this function which

        // is redundant.

        $trace = preg_replace ('/^#0\s+' . __FUNCTION__ . "[^\n]*\n/", '', $trace, 1);



        // Renumber backtrace items.

        $trace = preg_replace ('/^#(\d+)/me', '\'#\' . ($1 - 1)', $trace);



        return $trace;

    }

?>
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