另：(Error.php)錯誤處理 · thinkphp5.0 源碼閱讀學習

[TOC] * * * * * ## 1 錯誤處理文件源代碼(thinkphp\library\think\Error.php) ~~~ public static function register() { set_error_handler([__CLASS__, 'appError']); set_exception_handler([__CLASS__, 'appException']); register_shutdown_function([__CLASS__, 'appShutdown']); } ~~~ ~~~ public static function appException($exception) { if (!(APP_DEBUG || IS_API)) { $error_page = Config::get('error_page'); if (!empty($error_page)) { header("Location: {$error_page}"); } } if (APP_DEBUG) { $data = [ 'name' => get_class($exception), 'file' => $exception->getFile(), 'line' => $exception->getLine(), 'message' => $exception->getMessage(), 'trace' => $exception->getTrace(), 'code' => self::getCode($exception), 'source' => self::getSourceCode($exception), 'datas' => self::getExtendData($exception), 'tables' => [ 'GET Data' => $_GET, 'POST Data' => $_POST, 'Files' => $_FILES, 'Cookies' => $_COOKIE, 'Session' => isset($_SESSION) ? $_SESSION : [], 'Server/Request Data' => $_SERVER, 'Environment Variables' => $_ENV, 'ThinkPHP Constants' => self::getTPConst(), ], ]; $err_msg = "[{$data['code']}]{$data['message']}[{$data['file']}:{$data['line']}]"; } else { $data = [ 'code' => $exception->getCode(), 'message' => Config::get('show_error_msg') ? $exception->getMessage() : Config::get('error_message'), ]; $err_msg = "[{$data['code']}]{$data['message']}"; } Log::record($err_msg, 'error'); self::output($exception, $data); return true; } ~~~ ~~~ public static function appError($errno, $errstr, $errfile = null, $errline = 0, array $errcontext = []) { if ($errno & Config::get('exception_ignore_type')) { Log::record("[{$errno}]{$errstr}[{$errfile}:{$errline}]", 'notice'); } else { throw new ErrorException($errno, $errstr, $errfile, $errline, $errcontext); return true; } } ~~~ ~~~ public static function appShutdown() { Log::save(); if ($error = error_get_last()) { $exception = new ErrorException( $error['type'], $error['message'], $error['file'], $error['line'] ); self::appException($exception); return true; } return false; } ~~~ ~~~ public static function output($exception, array $vars) { if ($exception instanceof Exception) { http_response_code($exception->getHttpStatus()); } else { http_response_code(500); } $type = Config::get('default_return_type'); if (IS_API && 'html' != $type) { APP_HOOK && Hook::listen('error_output', $data); Response::send($data, $type, Config::get('response_return')); } else { extract($vars); include Config::get('exception_tmpl'); } } ~~~ ~~~ private static function getCode($exception) { $code = $exception->getCode(); if (!$code && $exception instanceof ErrorException) { $code = $exception->getSeverity(); } return $code; } ~~~ ~~~ private static function getSourceCode($exception) { $line = $exception->getLine(); $first = ($line - 9 > 0) ? $line - 9 : 1; try { $contents = file($exception->getFile()); $source = [ 'first' => $first, 'source' => array_slice($contents, $first - 1, 19), ]; } catch (Exception $e) { $source = []; } return $source; } ~~~ ~~~ private static function getExtendData($exception) { $data = []; if ($exception instanceof Exception) { $data = $exception->getData(); } return $data; } ~~~ ~~~ private static function getTPConst() { return [ 'THINK_VERSION' => defined('THINK_VERSION') ? THINK_VERSION : 'undefined', 'THINK_PATH' => defined('THINK_PATH') ? THINK_PATH : 'undefined', 'LIB_PATH' => defined('LIB_PATH') ? LIB_PATH : 'undefined', 'EXTEND_PATH' => defined('EXTEND_PATH') ? EXTEND_PATH : 'undefined', 'MODE_PATH' => defined('MODE_PATH') ? MODE_PATH : 'undefined', 'CORE_PATH' => defined('CORE_PATH') ? CORE_PATH : 'undefined', 'ORG_PATH' => defined('ORG_PATH') ? ORG_PATH : 'undefined', 'TRAIT_PATH' => defined('TRAIT_PATH') ? TRAIT_PATH : 'undefined', 'APP_PATH' => defined('APP_PATH') ? APP_PATH : 'undefined', 'RUNTIME_PATH' => defined('RUNTIME_PATH') ? RUNTIME_PATH : 'undefined', 'DATA_PATH' => defined('DATA_PATH') ? DATA_PATH : 'undefined', 'LOG_PATH' => defined('LOG_PATH') ? LOG_PATH : 'undefined', 'CACHE_PATH' => defined('CACHE_PATH') ? CACHE_PATH : 'undefined', 'TEMP_PATH' => defined('TEMP_PATH') ? TEMP_PATH : 'undefined', 'VENDOR_PATH' => defined('VENDOR_PATH') ? VENDOR_PATH : 'undefined', 'MODULE_PATH' => defined('MODULE_PATH') ? MODULE_PATH : 'undefined', 'VIEW_PATH' => defined('VIEW_PATH') ? VIEW_PATH : 'undefined', 'APP_NAMESPACE' => defined('APP_NAMESPACE') ? APP_NAMESPACE : 'undefined', 'COMMON_MODULE' => defined('COMMON_MODULE') ? COMMON_MODULE : 'undefined', 'APP_MULTI_MODULE' => defined('APP_MULTI_MODULE') ? APP_MULTI_MODULE : 'undefined', 'MODULE_ALIAS' => defined('MODULE_ALIAS') ? MODULE_ALIAS : 'undefined', 'MODULE_NAME' => defined('MODULE_NAME') ? MODULE_NAME : 'undefined', 'CONTROLLER_NAME' => defined('CONTROLLER_NAME') ? CONTROLLER_NAME : 'undefined', 'ACTION_NAME' => defined('ACTION_NAME') ? ACTION_NAME : 'undefined', 'MODEL_LAYER' => defined('MODEL_LAYER') ? MODEL_LAYER : 'undefined', 'VIEW_LAYER' => defined('VIEW_LAYER') ? VIEW_LAYER : 'undefined', 'CONTROLLER_LAYER' => defined('CONTROLLER_LAYER') ? CONTROLLER_LAYER : 'undefined', 'APP_DEBUG' => defined('APP_DEBUG') ? APP_DEBUG : 'undefined', 'APP_HOOK' => defined('APP_HOOK') ? APP_HOOK : 'undefined', 'ENV_PREFIX' => defined('ENV_PREFIX') ? ENV_PREFIX : 'undefined', 'IS_API' => defined('IS_API') ? IS_API : 'undefined', 'APP_AUTO_BUILD' => defined('APP_AUTO_BUILD') ? APP_AUTO_BUILD : 'undefined', 'APP_AUTO_RUN' => defined('APP_AUTO_RUN') ? APP_AUTO_RUN : 'undefined', 'APP_MODE' => defined('APP_MODE') ? APP_MODE : 'undefined', 'REQUEST_METHOD' => defined('REQUEST_METHOD') ? REQUEST_METHOD : 'undefined', 'IS_CGI' => defined('IS_CGI') ? IS_CGI : 'undefined', 'IS_WIN' => defined('IS_WIN') ? IS_WIN : 'undefined', 'IS_CLI' => defined('IS_CLI') ? IS_CLI : 'undefined', 'IS_AJAX' => defined('IS_AJAX') ? IS_AJAX : 'undefined', 'IS_GET' => defined('IS_GET') ? IS_GET : 'undefined', 'IS_POST' => defined('IS_POST') ? IS_POST : 'undefined', 'IS_PUT' => defined('IS_PUT') ? IS_PUT : 'undefined', 'IS_DELETE' => defined('IS_DELETE') ? IS_DELETE : 'undefined', 'NOW_TIME' => defined('NOW_TIME') ? NOW_TIME : 'undefined', 'LANG_SET' => defined('LANG_SET') ? LANG_SET : 'undefined', 'EXT' => defined('EXT') ? EXT : 'undefined', 'DS' => defined('DS') ? DS : 'undefined', '__INFO__' => defined('__INFO__') ? __INFO__ : 'undefined', '__EXT__' => defined('__EXT__') ? __EXT__ : 'undefined', ]; } ~~~ ## 2 文件分析 1 `public static function register(){}` 注冊框架的錯誤，異常，終止處理方法關于php的異常，錯誤注冊見基礎原理的php的異常錯誤 2 `public static function appException($exception){}` 異常處理接口 appException() 3 `public static function appError($errno, $errstr, $errfile = null, $errline = 0, array $errcontext = []){}` 錯誤處理接口 appError() 4 `public static function appShutdown(){}` 終止處理接口 appShutdown() 5 `public static function output($exception, array $vars){}` 異常信息輸出 output() 這里包含異常模板文件exception_tmpl 6 `private static function getCode($exception){}` 獲取錯誤編碼在上述異常處理接口調用 7 `private static function getSourceCode($exception){}` 獲取出錯文件內容在上述異常處理接口調用 8 `private static function getExtendData($exception){}` 獲取異常擴展信息在上述異常處理接口調用 9 `private static function getTPConst(){}` 獲取ThinPHP常量列表在上述異常處理接口調用 ## 3 使用方法 TODO: ## 4 總結錯誤處理在框架運行出錯時的處理接口。