PHP debug_print_backtrace函数代码示例

 /**
  * @brief Generates a user-level error/warning/notice message
  * 
  * @param string $error_msg	 The designated error message for this error. 
  * @param string $error_type The designated error type for this error.It  
  * only works with the E_USER family of constants.
  */
 public function error($error_msg, $error_type = E_USER_ERROR)
 {
     echo '<pre>';
     debug_print_backtrace();
     echo '</pre>';
     trigger_error($error_msg, $error_type);
 }

 function actionLink($action, $id = "", $args = "", $urlname = "")
 {
     global $boardroot, $mainPage;
     if ($boardroot == "") {
         $boardroot = "./";
     }
     $bucket = "linkMangler";
     include 'lib/pluginloader.php';
     $res = "";
     if ($action != $mainPage) {
         $res .= "&page={$action}";
     }
     if ($id != "") {
         $res .= "&id=" . urlencode($id);
     }
     if ($args) {
         $res .= "&{$args}";
     }
     if (strpos($res, "&amp")) {
         debug_print_backtrace();
         Kill("Found & in link");
     }
     if ($res == "") {
         return $boardroot;
     } else {
         return $boardroot . "?" . substr($res, 1);
     }
 }

/**
 * 错误输出
 * @param mixed $error 错误
 * @return void
 */
function halt($error)
{
    $e = array();
    if (APP_DEBUG) {
        //调试模式下输出错误信息
        if (!is_array($error)) {
            $trace = debug_backtrace();
            $e['message'] = $error;
            $e['file'] = $trace[0]['file'];
            $e['line'] = $trace[0]['line'];
            ob_start();
            debug_print_backtrace();
            $e['trace'] = ob_get_clean();
        } else {
            $e = $error;
        }
    } else {
        //否则定向到错误页面
        $error_page = C('ERROR_PAGE');
        if (!empty($error_page)) {
            redirect($error_page);
        } else {
            if (C('SHOW_ERROR_MSG')) {
                $e['message'] = is_array($error) ? $error['message'] : $error;
            } else {
                $e['message'] = C('ERROR_MESSAGE');
            }
        }
    }
    // 包含异常页面模板
    include C('TMPL_EXCEPTION_FILE');
    exit;
}

 /**
  * 致命错误
  * 程序执行完后执行的操作，有些级别的错误self::appError是捕捉不到的
  * @return void
  */
 public static function fatalError()
 {
     // error_get_last() 函数获取最后发生的错误。
     // 该函数以数组的形式返回最后发生的错误。
     // 返回的数组包含 4 个键和值：
     // [type] - 错误类型
     // [message] - 错误消息
     // [file] - 发生错误所在的文件
     // [line] - 发生错误所在的行
     if ($errorArray = error_get_last()) {
         switch ($errorArray['type']) {
             case E_ERROR:
             case E_PARSE:
             case E_CORE_ERROR:
             case E_COMPILE_ERROR:
             case E_USER_ERROR:
                 ob_end_clean();
                 // 致命的错误，要停止运行，清除以前的所有输出
                 ob_start();
                 // 开启缓冲区
                 debug_print_backtrace();
                 // 输出调试信息
                 $errorArray['trace'] = ob_get_clean();
                 // 获取刚输出到缓冲区的调试信息
                 include dirname(__DIR__) . '/Views/fatalError.php';
                 break;
         }
     }
 }

function __autoload($class_name)
{
    static $files = null;
    $success = false;
    $class_file = strtolower($class_name) . '.php';
    if (empty($files)) {
        $files = array();
        $glob = glob(MICROSITE_PATH . '/microsite/classes/*.php');
        $fnames = array_map(create_function('$a', 'return strtolower(basename($a));'), $glob);
        $files = array_merge($files, array_combine($fnames, $glob));
        $glob = glob(MICROSITE_PATH . '/microsite/controllers/*.php');
        $fnames = array_map(create_function('$a', 'return strtolower(basename($a, ".php") . "controller.php");'), $glob);
        $files = array_merge($files, array_combine($fnames, $glob));
    }
    // Search in the available files for the undefined class file.
    if (isset($files[$class_file])) {
        require $files[$class_file];
        // If the class has a static method named __static(), execute it now, on initial load.
        if (class_exists($class_name, false) && method_exists($class_name, '__static')) {
            call_user_func(array($class_name, '__static'));
        }
        $success = true;
    }
    if (!$success) {
        var_dump($class_name);
        var_dump($files);
        debug_print_backtrace();
    }
}

function my_die($text)
{
    echo '</select></p></div><div style="padding: 1em; color:red; font-size:120%; background-color:#CEECF5;">' . '<p><b>Fatal Error:</b> ' . tohtml($text) . "</p></div><hr /><pre>Backtrace:\n\n";
    debug_print_backtrace();
    echo '</pre><hr />';
    die('</body></html>');
}

 private function _preg_error()
 {
     switch (preg_last_error()) {
         case PREG_INTERNAL_ERROR:
             echo 'PREG_INTERNAL_ERROR';
             break;
         case PREG_BACKTRACK_LIMIT_ERROR:
             echo 'PREG_BACKTRACK_LIMIT_ERROR';
             break;
         case PREG_RECURSION_LIMIT_ERROR:
             echo 'PREG_RECURSION_LIMIT_ERROR';
             break;
         case PREG_BAD_UTF8_ERROR:
             echo 'PREG_BAD_UTF8_ERROR';
             break;
             // This is only valid for php > 5.3, not certain how to code around it for unit tests
             //			case PREG_BAD_UTF8_OFFSET_ERROR: echo('PREG_BAD_UTF8_OFFSET_ERROR'); break;
         // This is only valid for php > 5.3, not certain how to code around it for unit tests
         //			case PREG_BAD_UTF8_OFFSET_ERROR: echo('PREG_BAD_UTF8_OFFSET_ERROR'); break;
         default:
             //die("Unknown preg error.");
             return;
     }
     echo "<hr><pre>";
     debug_print_backtrace();
     die;
 }

 public function testRegistering()
 {
     $this->appMock->expects($this->at(0))->method('singleton')->will($this->returnCallback(function ($boundTo, $closure) {
         switch ($boundTo) {
             case BladedServiceProvider::PROVIDES_SERVICE:
                 $this->assertTrue($closure($this->appMock) instanceof BladedManager);
                 break;
             case IBladedManager::class:
                 $this->assertTrue($closure($this->appMock) instanceof BladedManager);
                 break;
             case BladedServiceProvider::PROVIDES_STRING_COMPILER:
                 $this->assertTrue($closure($this->appMock) instanceof StringCompiler);
                 break;
             default:
                 var_dump($boundTo);
                 die('dead: ' . debug_print_backtrace());
         }
     }));
     $this->appMock->expects($this->any())->method('make')->will($this->returnCallback(function ($resolvable) {
         switch ($resolvable) {
             case 'files':
                 return new Filesystem();
             case 'blade.compiler':
                 return $this->bladeCompilerMock;
             case 'path.storage':
                 return __DIR__;
             default:
                 var_dump($resolvable);
                 die('dead');
         }
     }));
     $this->assertNull($this->testInstance->registering());
 }

 public function assert($cond, $msg = 'Error', $params = array())
 {
     // TODO: obtener un mensaje que diga mas, linea, clase y
     //       metodo donde se intenta verificar la condicion
     //if (!$cond) $this->suite->report('error');
     if (!$cond) {
         // http://php.net/manual/en/function.debug-backtrace.php
         ob_start();
         debug_print_backtrace();
         // Stack de llamadas que resultaron en un test que falla
         $trace = ob_get_contents();
         // Trace es lo mismo que moreInfo pero abajo se procesa para mostrar solo el trace que importa.
         $moreInfo = ob_get_contents();
         // Todos los echos y prints que se pudieron hacer
         ob_end_clean();
         // Se quita la llamada a este metodo de el stack (assert)
         $pos = strpos($trace, "\n#1  ");
         if ($pos !== false) {
             $trace = substr($trace, $pos);
         }
         // TODO: hay que remover las ultimas lineas que son llamadas del framework
         /*
                   * #4  CoreController->testAppAction(Array ()) called at [C:\wamp\www\YuppPHPFramework\core\mvc\core.mvc.YuppController.class.php:59]
         #5  YuppController->__call(testApp, Array ())
         #6  CoreController->testApp() called at [C:\wamp\www\YuppPHPFramework\core\routing\core.routing.Executer.class.php:163]
         #7  Executer->execute() called at [C:\wamp\www\YuppPHPFramework\core\web\core.web.RequestManager.class.php:158]
         #8  RequestManager::doRequest() called at [C:\wamp\www\YuppPHPFramework\index.php:94]
         */
         $this->suite->report(get_class($this), 'ERROR', $msg, $trace, $moreInfo, $params);
     } else {
         // tengo que mostrar los tests correctos
         $this->suite->report(get_class($this), 'OK', $msg);
     }
 }

function d($a)
{
    print "<pre>";
    var_dump($a);
    debug_print_backtrace(0, 3);
    die;
}

 public static function handlerAsserts($file, $line, $code)
 {
     echo "<hr>Echec de l'assertion :\r\n\t\t\tFile '{$file}'<br />\r\n\t\t\tLine '{$line}'<br />\r\n\t\t\tCode '{$code}'<br /><hr />";
     echo "<pre>";
     debug_print_backtrace();
     echo "</pre>";
 }

 /**
  * @throws Exception
  */
 public function testValue($value)
 {
     if (!is_a($value, $this->typeOf)) {
         debug_print_backtrace();
         throw new \Exception('Element is not an instance of: ' . $this->typeOf);
     }
 }

 public function __construct($name, $type, $file)
 {
     if (DEBUG) {
         debug_print_backtrace();
     }
     trigger_error(sprintf("File '%s' requires %s '%s', which is not available.", $file, $type, $name), E_USER_ERROR);
 }

 public function run()
 {
     foreach ($this->testCases as $testCase) {
         try {
             $testCase->run();
         } catch (Exception $e) {
             ob_start();
             debug_print_backtrace();
             // Stack de llamadas que resultaron en un test que falla
             $trace = ob_get_contents();
             $moreInfo = ob_get_contents();
             // Todos los echos y prints que se pudieron hacer
             ob_end_clean();
             // Se quita la llamada a este metodo de el stack (assert)
             $pos = strpos($trace, "\n");
             if ($pos !== false) {
                 $trace = substr($trace, $pos);
             }
             // TODO: hay que remover las ultimas lineas que son llamadas del framework
             /*
             * #4  CoreController->testAppAction(Array ()) called at [C:\wamp\www\YuppPHPFramework\core\mvc\core.mvc.YuppController.class.php:59]
             #5  YuppController->__call(testApp, Array ())
             #6  CoreController->testApp() called at [C:\wamp\www\YuppPHPFramework\core\routing\core.routing.Executer.class.php:163]
             #7  Executer->execute() called at [C:\wamp\www\YuppPHPFramework\core\web\core.web.RequestManager.class.php:158]
             #8  RequestManager::doRequest() called at [C:\wamp\www\YuppPHPFramework\index.php:94]
             */
             $this->report(get_class($testCase), 'EXCEPTION', $e->getMessage(), $trace, $moreInfo);
         }
     }
 }

    function query($req)
    {
        // Si c'est la première requête
        if ($this->reqcount == 0) {
            // on ititialise les paramètres
            $this->initParams();
        }
        // On incrémente le compteur de requêtes
        $this->reqcount++;
        // Si la requête n'arrive pas à s'exécuter
        if (!($res = parent::query($req))) {
            // On commencer à mettre la sortie dans un buffer (ob = output buffer)
            ob_start();
            // On affiche l'état de la pile d'appel (pour savoir pourquoi ça plante, d'uù le script est lancé)
            debug_print_backtrace();
            // On écrit tout ça dans un fichier de logs "mysql_errors" avec la date, l'erreur, la requête SQL associée et l'état de la pile d'appel dans le buffer
            file_put_contents(FONCTIONS . "mysql_errors", date('[d/m/Y - H:i:s]') . ' Erreur MySQL : ' . $this->error . ' pendant la requête ' . $req . '
Backtrace:
' . ob_get_contents());
            // On termine la capture de la sortie et on efface ce qu'on a enregistré
            ob_end_clean();
            // Et on termine le script.
            die("Une erreur s'est produite: " . $this->error);
        }
        // Sinon, tout va bien, on renvoie le résultat.
        return $res;
    }