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12 years ago
Here's a function I just wrote for getting a nice and comprehensible call trace. It is probably more resource-intensive than some other alternatives but it is short, understandable, and gives nice output (Exception->getTraceAsString()).

<?php
function generateCallTrace()
{
    $e = new Exception();
    $trace = explode("\n", $e->getTraceAsString());
    // reverse array to make steps line up chronologically
    $trace = array_reverse($trace);
    array_shift($trace); // remove {main}
    array_pop($trace); // remove call to this method
    $length = count($trace);
    $result = array();
    
    for ($i = 0; $i < $length; $i++)
    {
        $result[] = ($i + 1)  . ')' . substr($trace[$i], strpos($trace[$i], ' ')); // replace '#someNum' with '$i)', set the right ordering
    }
    
    return "\t" . implode("\n\t", $result);
}
?>

Example output:
    1) /var/www/test/test.php(15): SomeClass->__construct()
    2) /var/www/test/SomeClass.class.php(36): SomeClass->callSomething()
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