function ajaxShutdown()
{
$isError = false;
if ($error = error_get_last()) {
switch ($error['type']) {
case E_ERROR:
case E_CORE_ERROR:
case E_COMPILE_ERROR:
case E_USER_ERROR:
case E_PARSE:
$log_file = ini_get("error_log");
if (file_exists($log_file)) {
$number_of_characters_to_get = 5000;
$bf = new BigFile($log_file);
$text = $bf->getFromEnd($number_of_characters_to_get);
$lines = array_reverse(explode("\n", $text));
$backtrace = "";
foreach ($lines as $i => $line) {
if (strstr($line, "Fatal")) {
for ($j = $i; $j > 0; $j--) {
$backtrace .= $lines[$j] . "\n";
}
break;
}
}
if ($backtrace == "") {
$backtrace = "No Fatal error found in the last {$number_of_characters_to_get} lines of {$log_file}";
}
} else {
$backtrace = "No error log found at " . $log_file;
}
$isError = true;
break;
}
}
if ($isError) {
send_http_error(new Exception("E_ERROR " . $error['message'] . "\n file: " . $error['file'] . " (" . $error['line'] . ")", E_FATAL_ERROR), "FATAL ERROR. shutdown function tried to restore backtrace from php error log ({$log_file}):\n" . $backtrace, true);
$response = new HttpResponse();
$response->setStatus("400 Bad Request");
$response->write("E_ERROR " . $error['message'] . "\n file: " . $error['file'] . " (" . $error['line'] . ")");
$response->flush();
}
}
protected static function json_echo_stream(BigFile $data)
{
// Encode stream to base64.
echo '"';
$data->render();
echo '"';
}
