<?php

if (empty($error) || empty($error['message'])) {
    return '';
}
if (in_array('-d', $_SERVER['argv'])) {
    // 作为守护进程运行时逻辑, 写日志
    return require(__DIR__ . "/product.php");
}
if (isset($error['backtrace'])) {
    $backtrace = $error['backtrace'];
    unset($error['backtrace']);
} else {
    $backtrace = debug_backtrace(DEBUG_BACKTRACE);
}

$contents = print_r($backtrace, true);
$contents .= print_r($error, true);
return $contents;