Detect calling function with debug_backtrace()

[BlackDex]

Hello,

I want to use debug_backtrace() in the function called by register_shutdown_function. But it only displays the function we are currently in (the shutdown function).

Is there any way to trace what class, methode or line caused php to call the
shutdown function?

Thx in advanced

[jezzer300]

I do this...

During an error I display $error_backtrace

$error_backtrace = back_trace();

Use the below routine...

function back_trace() {

$output = ''; //"Trace @ ".sql_datetime()."<br>\n";
$backtrace = debug_backtrace();

$indent = 0;
foreach ($backtrace as $bt) {
$args = '';
if (is_array($bt['args'])) {
foreach ($bt['args'] as $a) {
if (!empty($args)) {
$args .= ', ';
}
switch (gettype($a)) {
case 'integer':
case 'double':
$args .= $a;
break;
case 'string':
$a = htmlspecialchars(substr($a, 0, 64)).((strlen($a) > 64)? '...' : '');
$args .= "\"$a\"";
break;
case 'array':
$args .= 'Array('.count($a).')';
break;
case 'object':
$args .= 'Object('.get_class($a).')';
break;
case 'resource':
$args .= 'Resource('.strstr($a, '#').')';
break;
case 'boolean':
$args .= $a? 'True' : 'False';
break;
case 'NULL':
$args .= 'Null';
break;
default:
$args .= 'Unknown';
}
}
}
if ((basename($bt['file'])!= 'inc_error_handler.php')) { // only trace this error handler if the error originated in here
$output .= str_repeat(">",$indent);
$indent++;
$output .= basename($bt['file'])." @ {$bt['line']}\t{$bt['class']}\t{$bt['type']}\t{$bt['function']}\t($args)\t\n";
}
}

return $output;
}

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The test for "inc_error_handler.php" stop me tracing all the way into my error handler.