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ErrorHandler, yii\console\ErrorHandler | API Documentation for Yii 2.0

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Defined in: yii\base\Component::__call()

Calls the named method which is not a class method.

This method will check if any attached behavior has the named method and will execute it if available.

Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.

Source code

                public function __call($name, $params)
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $object) {
        if ($object->hasMethod($name)) {
            return call_user_func_array([$object, $name], $params);
        }
    }
    throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}

            

Defined in: yii\base\Component::__clone()

This method is called after the object is created by cloning an existing one.

It removes all behaviors because they are attached to the old object.

Source code

                public function __clone()
{
    $this->_events = [];
    $this->_eventWildcards = [];
    $this->_behaviors = null;
}

            

Defined in: yii\base\BaseObject::__construct()

Constructor.

The default implementation does two things:

• Initializes the object with the given configuration $config.
• Call init().

If this method is overridden in a child class, it is recommended that

• the last parameter of the constructor is a configuration array, like $config here.
• call the parent implementation at the end of the constructor.

Name-value pairs that will be used to initialize the object properties

Source code

                public function __construct($config = [])
{
    if (!empty($config)) {
        Yii::configure($this, $config);
    }
    $this->init();
}

            

Defined in: yii\base\Component::__get()

Returns the value of a component property.

This method will check in the following order and act accordingly:

• a property defined by a getter: return the getter result
• a property of a behavior: return the behavior property value

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $value = $component->property;.

See also __set().

Source code

                public function __get($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        
        return $this->$getter();
    }
    
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name;
        }
    }
    if (method_exists($this, 'set' . $name)) {
        throw new InvalidCallException('Getting write-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}

            

Defined in: yii\base\Component::__isset()

Checks if a property is set, i.e. defined and not null.

This method will check in the following order and act accordingly:

• a property defined by a setter: return whether the property is set
• a property of a behavior: return whether the property is set
• return false for non existing properties

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing isset($component->property).

See also https://www.php.net/manual/en/function.isset.php.

Source code

                public function __isset($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        return $this->$getter() !== null;
    }
    
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name !== null;
        }
    }
    return false;
}

            

Defined in: yii\base\Component::__set()

Sets the value of a component property.

This method will check in the following order and act accordingly:

• a property defined by a setter: set the property value
• an event in the format of "on xyz": attach the handler to the event "xyz"
• a behavior in the format of "as xyz": attach the behavior named as "xyz"
• a property of a behavior: set the behavior property value

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $component->property = $value;.

See also __get().

Source code

                public function __set($name, $value)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        
        $this->$setter($value);
        return;
    } elseif (strncmp($name, 'on ', 3) === 0) {
        
        $this->on(trim(substr($name, 3)), $value);
        return;
    } elseif (strncmp($name, 'as ', 3) === 0) {
        
        $name = trim(substr($name, 3));
        if ($value instanceof Behavior) {
            $this->attachBehavior($name, $value);
        } elseif ($value instanceof \Closure) {
            $this->attachBehavior($name, call_user_func($value));
        } elseif (isset($value['__class']) && is_subclass_of($value['__class'], Behavior::class)) {
            $this->attachBehavior($name, Yii::createObject($value));
        } elseif (!isset($value['__class']) && isset($value['class']) && is_subclass_of($value['class'], Behavior::class)) {
            $this->attachBehavior($name, Yii::createObject($value));
        } elseif (is_string($value) && is_subclass_of($value, Behavior::class, true)) {
            $this->attachBehavior($name, Yii::createObject($value));
        } else {
            throw new InvalidConfigException('Class is not of type ' . Behavior::class . ' or its subclasses');
        }
        return;
    }
    
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = $value;
            return;
        }
    }
    if (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}

            

Defined in: yii\base\Component::__unset()

Sets a component property to be null.

This method will check in the following order and act accordingly:

• a property defined by a setter: set the property value to be null
• a property of a behavior: set the property value to be null

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing unset($component->property).

See also https://www.php.net/manual/en/function.unset.php.

Source code

                public function __unset($name)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter(null);
        return;
    }
    
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = null;
            return;
        }
    }
    throw new InvalidCallException('Unsetting an unknown or read-only property: ' . get_class($this) . '::' . $name);
}

            

Source code

                public function attachBehavior($name, $behavior)
{
    $this->ensureBehaviors();
    return $this->attachBehaviorInternal($name, $behavior);
}

            

List of behaviors to be attached to the component

Source code

                public function attachBehaviors($behaviors)
{
    $this->ensureBehaviors();
    foreach ($behaviors as $name => $behavior) {
        $this->attachBehaviorInternal($name, $behavior);
    }
}

            

Defined in: yii\base\Component::behaviors()

Returns a list of behaviors that this component should behave as.

Child classes may override this method to specify the behaviors they want to behave as.

The return value of this method should be an array of behavior objects or configurations indexed by behavior names. A behavior configuration can be either a string specifying the behavior class or an array of the following structure:

'behaviorName' => [
    'class' => 'BehaviorClass',
    'property1' => 'value1',
    'property2' => 'value2',
]

Note that a behavior class must extend from yii\base\Behavior. Behaviors can be attached using a name or anonymously. When a name is used as the array key, using this name, the behavior can later be retrieved using getBehavior() or be detached using detachBehavior(). Anonymous behaviors can not be retrieved or detached.

Behaviors declared in this method will be attached to the component automatically (on demand).

Source code

                public function behaviors()
{
    return [];
}

            

Defined in: yii\base\Component::canGetProperty()

Returns a value indicating whether a property can be read.

A property can be read if:

• the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
• the class has a member variable with the specified name (when $checkVars is true);
• an attached behavior has a readable property of the given name (when $checkBehaviors is true).

See also canSetProperty().

The property name

Whether to treat member variables as properties

Whether to treat behaviors' properties as properties of this component

Whether the property can be read

Source code

                public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canGetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            

Defined in: yii\base\Component::canSetProperty()

Returns a value indicating whether a property can be set.

A property can be written if:

• the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
• the class has a member variable with the specified name (when $checkVars is true);
• an attached behavior has a writable property of the given name (when $checkBehaviors is true).

See also canGetProperty().

The property name

Whether to treat member variables as properties

Whether to treat behaviors' properties as properties of this component

Whether the property can be written

Source code

                public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canSetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            

Deprecated since 2.0.14. On PHP >=5.5, use ::class instead.

Source code

                public static function className()
{
    return get_called_class();
}

            

Source code

                public function clearOutput()
{
    
    for ($level = ob_get_level(); $level > 0; --$level) {
        if (!@ob_end_clean()) {
            ob_clean();
        }
    }
}

            

Defined in: yii\base\ErrorHandler::convertExceptionToError()

Converts an exception into a PHP error.

This method can be used to convert exceptions inside of methods like __toString() to PHP errors because exceptions cannot be thrown inside of them.

Source code

                public static function convertExceptionToError($exception)
{
    trigger_error(static::convertExceptionToString($exception), E_USER_ERROR);
}

            

Source code

                public static function convertExceptionToString($exception)
{
    if ($exception instanceof UserException) {
        return "{$exception->getName()}: {$exception->getMessage()}";
    }
    if (YII_DEBUG) {
        return static::convertExceptionToVerboseString($exception);
    }
    return 'An internal server error occurred.';
}

            

Source code

                public static function convertExceptionToVerboseString($exception)
{
    if ($exception instanceof Exception) {
        $message = "Exception ({$exception->getName()})";
    } elseif ($exception instanceof ErrorException) {
        $message = (string)$exception->getName();
    } else {
        $message = 'Exception';
    }
    $message .= " '" . get_class($exception) . "' with message '{$exception->getMessage()}' \n\nin "
        . $exception->getFile() . ':' . $exception->getLine() . "\n\n"
        . "Stack trace:\n" . $exception->getTraceAsString();
    return $message;
}

            

Source code

                public function detachBehavior($name)
{
    $this->ensureBehaviors();
    if (isset($this->_behaviors[$name])) {
        $behavior = $this->_behaviors[$name];
        unset($this->_behaviors[$name]);
        $behavior->detach();
        return $behavior;
    }
    return null;
}

            

Source code

                public function detachBehaviors()
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $name => $behavior) {
        $this->detachBehavior($name);
    }
}

            

Source code

                public function ensureBehaviors()
{
    if ($this->_behaviors === null) {
        $this->_behaviors = [];
        foreach ($this->behaviors() as $name => $behavior) {
            $this->attachBehaviorInternal($name, $behavior);
        }
    }
}

            

The message to colorize.

The message format.

The colorized message.

Source code

                protected function formatMessage($message, $format = [Console::FG_RED, Console::BOLD])
{
    $stream = (PHP_SAPI === 'cli') ? \STDERR : \STDOUT;
    
    if (
        Yii::$app->controller instanceof \yii\console\Controller && Yii::$app->controller->isColorEnabled($stream)
        || Yii::$app instanceof \yii\console\Application && Console::streamSupportsAnsiColors($stream)
    ) {
        $message = Console::ansiFormat($message, $format);
    }
    return $message;
}

            

Source code

                public function getBehavior($name)
{
    $this->ensureBehaviors();
    return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}

            

Source code

                public function getBehaviors()
{
    $this->ensureBehaviors();
    return $this->_behaviors;
}

            

Source code

                public function handleError($code, $message, $file, $line)
{
    if (error_reporting() & $code) {
        
        
        if (!class_exists('yii\\base\\ErrorException', false)) {
            require_once __DIR__ . '/ErrorException.php';
        }
        $exception = new ErrorException($message, $code, $code, $file, $line);
        if (PHP_VERSION_ID < 70400) {
            
            $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
            array_shift($trace);
            foreach ($trace as $frame) {
                if ($frame['function'] === '__toString') {
                    $this->handleException($exception);
                    if (defined('HHVM_VERSION')) {
                        flush();
                    }
                    exit(1);
                }
            }
        }
        throw $exception;
    }
    return false;
}

            

Source code

                public function handleException($exception)
{
    if ($exception instanceof ExitException) {
        return;
    }
    $this->exception = $exception;
    
    $this->unregister();
    
    
    if (PHP_SAPI !== 'cli') {
        http_response_code(500);
    }
    try {
        $this->logException($exception);
        if ($this->discardExistingOutput) {
            $this->clearOutput();
        }
        $this->renderException($exception);
        if (!$this->silentExitOnException) {
            \Yii::getLogger()->flush(true);
            if (defined('HHVM_VERSION')) {
                flush();
            }
            exit(1);
        }
    } catch (\Exception $e) {
        
        $this->handleFallbackExceptionMessage($e, $exception);
    } catch (\Throwable $e) {
        
        $this->handleFallbackExceptionMessage($e, $exception);
    }
    $this->exception = null;
}

            

Source code

                protected function handleFallbackExceptionMessage($exception, $previousException)
{
    $msg = "An Error occurred while handling another error:\n";
    $msg .= (string) $exception;
    $msg .= "\nPrevious exception:\n";
    $msg .= (string) $previousException;
    if (YII_DEBUG) {
        if (PHP_SAPI === 'cli') {
            echo $msg . "\n";
        } else {
            echo '<pre>' . htmlspecialchars($msg, ENT_QUOTES, Yii::$app->charset) . '</pre>';
        }
        $msg .= "\n\$_SERVER = " . VarDumper::export($_SERVER);
    } else {
        echo 'An internal server error occurred.';
    }
    error_log($msg);
    if (defined('HHVM_VERSION')) {
        flush();
    }
    exit(1);
}

            

Source code

                public function handleFatalError()
{
    $this->_memoryReserve = null;
    if (!empty($this->_workingDirectory)) {
        
        chdir($this->_workingDirectory);
        
        $this->_workingDirectory = null;
    }
    $error = error_get_last();
    if ($error === null) {
        return;
    }
    
    
    if (!class_exists('yii\\base\\ErrorException', false)) {
        require_once __DIR__ . '/ErrorException.php';
    }
    if (!ErrorException::isFatalError($error)) {
        return;
    }
    if (!empty($this->_hhvmException)) {
        $this->exception = $this->_hhvmException;
    } else {
        $this->exception = new ErrorException(
            $error['message'],
            $error['type'],
            $error['type'],
            $error['file'],
            $error['line']
        );
    }
    unset($error);
    $this->logException($this->exception);
    if ($this->discardExistingOutput) {
        $this->clearOutput();
    }
    $this->renderException($this->exception);
    
    Yii::getLogger()->flush(true);
    if (defined('HHVM_VERSION')) {
        flush();
    }
    $this->trigger(static::EVENT_SHUTDOWN);
    
    register_shutdown_function(function () {
        exit(1);
    });
}

            

Defined in: yii\base\ErrorHandler::handleHhvmError()

Handles HHVM execution errors such as warnings and notices.

This method is used as a HHVM error handler. It will store exception that will be used in fatal error handler

The level of the error raised.

The error message.

The filename that the error was raised in.

The line number the error was raised at.

Trace of error

Whether the normal error handler continues.

Source code

                public function handleHhvmError($code, $message, $file, $line, $context, $backtrace)
{
    if ($this->handleError($code, $message, $file, $line)) {
        return true;
    }
    if (E_ERROR & $code) {
        $exception = new ErrorException($message, $code, $code, $file, $line);
        $ref = new \ReflectionProperty('\Exception', 'trace');
        $ref->setAccessible(true);
        $ref->setValue($exception, $backtrace);
        $this->_hhvmException = $exception;
    }
    return false;
}

            

Source code

                public function hasEventHandlers($name)
{
    $this->ensureBehaviors();
    if (!empty($this->_events[$name])) {
        return true;
    }
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
            return true;
        }
    }
    return Event::hasHandlers($this, $name);
}

            

Defined in: yii\base\Component::hasMethod()

Returns a value indicating whether a method is defined.

A method is defined if:

• the class has a method with the specified name
• an attached behavior has a method with the given name (when $checkBehaviors is true).

The property name

Whether to treat behaviors' methods as methods of this component

Whether the method is defined

Source code

                public function hasMethod($name, $checkBehaviors = true)
{
    if (method_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->hasMethod($name)) {
                return true;
            }
        }
    }
    return false;
}

            

Defined in: yii\base\Component::hasProperty()

Returns a value indicating whether a property is defined for this component.

A property is defined if:

• the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
• the class has a member variable with the specified name (when $checkVars is true);
• an attached behavior has a property of the given name (when $checkBehaviors is true).

See also:

• canGetProperty()
• canSetProperty()

The property name

Whether to treat member variables as properties

Whether to treat behaviors' properties as properties of this component

Whether the property is defined

Source code

                public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
    return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}

            

Source code

                public function init()
{
    $this->silentExitOnException = $this->silentExitOnException !== null ? $this->silentExitOnException : YII_ENV_TEST;
    parent::init();
}

            

Source code

                public function logException($exception)
{
    $category = get_class($exception);
    if ($exception instanceof HttpException) {
        $category = 'yii\\web\\HttpException:' . $exception->statusCode;
    } elseif ($exception instanceof \ErrorException) {
        $category .= ':' . $exception->getSeverity();
    }
    Yii::error($exception, $category);
}

            

Defined in: yii\base\Component::off()

Detaches an existing event handler from this component.

This method is the opposite of on().

Note: in case wildcard pattern is passed for event name, only the handlers registered with this wildcard will be removed, while handlers registered with plain names matching this wildcard will remain.

See also on().

Event name

The event handler to be removed. If it is null, all handlers attached to the named event will be removed.

If a handler is found and detached

Source code

                public function off($name, $handler = null)
{
    $this->ensureBehaviors();
    if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
        return false;
    }
    if ($handler === null) {
        unset($this->_events[$name], $this->_eventWildcards[$name]);
        return true;
    }
    $removed = false;
    
    if (isset($this->_events[$name])) {
        foreach ($this->_events[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_events[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_events[$name] = array_values($this->_events[$name]);
            return true;
        }
    }
    
    if (isset($this->_eventWildcards[$name])) {
        foreach ($this->_eventWildcards[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_eventWildcards[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
            
            if (empty($this->_eventWildcards[$name])) {
                unset($this->_eventWildcards[$name]);
            }
        }
    }
    return $removed;
}

            

Defined in: yii\base\Component::on()

Attaches an event handler to an event.

The event handler must be a valid PHP callback. The following are some examples:

function ($event) { ... }         
[$object, 'handleClick']          
['Page', 'handleClick']           
'handleClick'                     

The event handler must be defined with the following signature,

function ($event)

where $event is an yii\base\Event object which includes parameters associated with the event.

Since 2.0.14 you can specify event name as a wildcard pattern:

$component->on('event.group.*', function ($event) {
    Yii::trace($event->name . ' is triggered.');
});

See also off().

The event name

The event handler

The data to be passed to the event handler when the event is triggered. When the event handler is invoked, this data can be accessed via yii\base\Event::$data.

Whether to append new event handler to the end of the existing handler list. If false, the new handler will be inserted at the beginning of the existing handler list.

Source code

                public function on($name, $handler, $data = null, $append = true)
{
    $this->ensureBehaviors();
    if (strpos($name, '*') !== false) {
        if ($append || empty($this->_eventWildcards[$name])) {
            $this->_eventWildcards[$name][] = [$handler, $data];
        } else {
            array_unshift($this->_eventWildcards[$name], [$handler, $data]);
        }
        return;
    }
    if ($append || empty($this->_events[$name])) {
        $this->_events[$name][] = [$handler, $data];
    } else {
        array_unshift($this->_events[$name], [$handler, $data]);
    }
}

            

Source code

                public function register()
{
    if (!$this->_registered) {
        ini_set('display_errors', false);
        set_exception_handler([$this, 'handleException']);
        if (defined('HHVM_VERSION')) {
            set_error_handler([$this, 'handleHhvmError']);
        } else {
            set_error_handler([$this, 'handleError']);
        }
        if ($this->memoryReserveSize > 0) {
            $this->_memoryReserve = str_repeat('x', $this->memoryReserveSize);
        }
        
        if (PHP_SAPI !== 'cli') {
            $this->_workingDirectory = getcwd();
        }
        register_shutdown_function([$this, 'handleFatalError']);
        $this->_registered = true;
    }
}

            

Renders an exception using ansi format for console output.

Source code

                protected function renderException($exception)
{
    $previous = $exception->getPrevious();
    if ($exception instanceof UnknownCommandException) {
        
        $message = $this->formatMessage($exception->getName() . ': ') . $exception->command;
        $alternatives = $exception->getSuggestedAlternatives();
        if (count($alternatives) === 1) {
            $message .= "\n\nDid you mean \"" . reset($alternatives) . '"?';
        } elseif (count($alternatives) > 1) {
            $message .= "\n\nDid you mean one of these?\n    - " . implode("\n    - ", $alternatives);
        }
    } elseif ($exception instanceof UserException && ($exception instanceof Exception || !YII_DEBUG)) {
        $message = $this->formatMessage($exception->getName() . ': ') . $exception->getMessage();
    } elseif (YII_DEBUG) {
        if ($exception instanceof Exception) {
            $message = $this->formatMessage("Exception ({$exception->getName()})");
        } elseif ($exception instanceof ErrorException) {
            $message = $this->formatMessage($exception->getName());
        } else {
            $message = $this->formatMessage('Exception');
        }
        $message .= $this->formatMessage(" '" . get_class($exception) . "'", [Console::BOLD, Console::FG_BLUE])
            . ' with message ' . $this->formatMessage("'{$exception->getMessage()}'", [Console::BOLD]) 
            . "\n\nin " . dirname($exception->getFile()) . DIRECTORY_SEPARATOR . $this->formatMessage(basename($exception->getFile()), [Console::BOLD])
            . ':' . $this->formatMessage($exception->getLine(), [Console::BOLD, Console::FG_YELLOW]) . "\n";
        if ($exception instanceof \yii\db\Exception && !empty($exception->errorInfo)) {
            $message .= "\n" . $this->formatMessage("Error Info:\n", [Console::BOLD]) . print_r($exception->errorInfo, true);
        }
        if ($previous === null) {
            $message .= "\n" . $this->formatMessage("Stack trace:\n", [Console::BOLD]) . $exception->getTraceAsString();
        }
    } else {
        $message = $this->formatMessage('Error: ') . $exception->getMessage();
    }
    if (PHP_SAPI === 'cli') {
        Console::stderr($message . "\n");
    } else {
        echo $message . "\n";
    }
    if (YII_DEBUG && $previous !== null) {
        $causedBy = $this->formatMessage('Caused by: ', [Console::BOLD]);
        if (PHP_SAPI === 'cli') {
            Console::stderr($causedBy);
        } else {
            echo $causedBy;
        }
        $this->renderException($previous);
    }
}

            

Defined in: yii\base\Component::trigger()

Triggers an event.

This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.

Source code

                public function trigger($name, ?Event $event = null)
{
    $this->ensureBehaviors();
    $eventHandlers = [];
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (StringHelper::matchWildcard($wildcard, $name)) {
            $eventHandlers[] = $handlers;
        }
    }
    if (!empty($this->_events[$name])) {
        $eventHandlers[] = $this->_events[$name];
    }
    if (!empty($eventHandlers)) {
        $eventHandlers = call_user_func_array('array_merge', $eventHandlers);
        if ($event === null) {
            $event = new Event();
        }
        if ($event->sender === null) {
            $event->sender = $this;
        }
        $event->handled = false;
        $event->name = $name;
        foreach ($eventHandlers as $handler) {
            $event->data = $handler[1];
            call_user_func($handler[0], $event);
            
            if ($event->handled) {
                return;
            }
        }
    }
    
    Event::trigger($this, $name, $event);
}

            

Source code

                public function unregister()
{
    if ($this->_registered) {
        $this->_memoryReserve = null;
        $this->_workingDirectory = null;
        restore_error_handler();
        restore_exception_handler();
        $this->_registered = false;
    }
}

            

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