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Class ErrorHandlerMiddleware
Error handling middleware.
Traps exceptions and converts them into HTML or content-type appropriate error pages using the CakePHP ExceptionRenderer.
- Cake\Error\Middleware\ErrorHandlerMiddleware uses Cake\Core\InstanceConfigTrait
 
Properties summary
- 
    
$_defaultConfigprotectedDefault configuration values.array 
Inherited Properties
Method Summary
- 
    __construct() publicConstructor
 - 
    __invoke() publicWrap the remaining middleware with error handling.
 - 
    getMessage() protectedGenerate the error log message.
 - 
    getRenderer() protectedGet a renderer instance
 - 
    handleException() publicHandle an exception and generate an error response
 - 
    logException() protectedLog an error for the exception if applicable.
 
Method Detail
__construct()source public
__construct( string|callable|null $renderer null , array $config [] )
   Constructor
Parameters
- 
     string|callable|null 
$rendereroptional null - 
     
The renderer or class name to use or a callable factory.
 - 
     array 
$configoptional [] - 
     
Configuration options to use. If empty,
Configure::read('Error')will be used. 
__invoke()source public
__invoke( Psr\Http\Message\ServerRequestInterface $request , Psr\Http\Message\ResponseInterface $response , callable $next )
   Wrap the remaining middleware with error handling.
Parameters
- 
     Psr\Http\Message\ServerRequestInterface 
$request - The request.
 - 
     Psr\Http\Message\ResponseInterface 
$response - The response.
 - 
     callable 
$next - Callback to invoke the next middleware.
 
Returns
Psr\Http\Message\ResponseInterfaceA response
getMessage()source protected
getMessage( Psr\Http\Message\ServerRequestInterface $request , Exception $exception )
   Generate the error log message.
Parameters
- 
     Psr\Http\Message\ServerRequestInterface 
$request - The current request.
 - 
     Exception 
$exception - The exception to log a message for.
 
Returns
stringError message
getRenderer()source protected
getRenderer( Exception $exception )
   Get a renderer instance
Parameters
- 
     Exception 
$exception - The exception being rendered.
 
Returns
Cake\Error\BaseErrorHandlerThe exception renderer.
Throws
ExceptionWhen the renderer class cannot be found.
handleException()source public
handleException( Exception $exception , Psr\Http\Message\ServerRequestInterface $request , Psr\Http\Message\ResponseInterface $response )
   Handle an exception and generate an error response
Parameters
- 
     Exception 
$exception - The exception to handle.
 - 
     Psr\Http\Message\ServerRequestInterface 
$request - The request.
 - 
     Psr\Http\Message\ResponseInterface 
$response - The response.
 
Returns
Psr\Http\Message\ResponseInterfaceA response
logException()source protected
logException( Psr\Http\Message\ServerRequestInterface $request , Exception $exception )
   Log an error for the exception if applicable.
Parameters
- 
     Psr\Http\Message\ServerRequestInterface 
$request - The current request.
 - 
     Exception 
$exception - The exception to log a message for.
 
Methods used from Cake\Core\InstanceConfigTrait
_configDelete()source protected
_configDelete( string $key )
   Delete a single config key
Parameters
- 
     string 
$key - Key to delete.
 
Throws
Cake\Core\Exception\Exceptionif attempting to clobber existing config
_configRead()source protected
_configRead( string|null $key )
   Read a config variable
Parameters
- 
     string|null 
$key - Key to read.
 
Returns
mixed_configWrite()source protected
_configWrite( string|array $key , mixed $value , boolean|string $merge false )
   Write a config variable
Parameters
- 
     string|array 
$key - Key to write to.
 - 
     mixed 
$value - Value to write.
 - 
     boolean|string 
$mergeoptional false - 
     
True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
 
Throws
Cake\Core\Exception\Exceptionif attempting to clobber existing config
config()source public
config( string|array|null $key null , mixed|null $value null , boolean $merge true )
   Usage
Reading the whole config:
$this->config();
   Reading a specific value:
$this->config('key');
   Reading a nested value:
$this->config('some.nested.key');
   Setting a specific value:
$this->config('key', $value);
   Setting a nested value:
$this->config('some.nested.key', $value);
   Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
   Parameters
- 
     string|array|null 
$keyoptional null - The key to get/set, or a complete array of configs.
 - 
     mixed|null 
$valueoptional null - The value to set.
 - 
     boolean 
$mergeoptional true - Whether to recursively merge or overwrite existing config, defaults to true.
 
Returns
mixedConfig value being read, or the object itself on write operations.
Throws
Cake\Core\Exception\ExceptionWhen trying to set a key that is invalid.
configShallow()source public
configShallow( string|array $key , mixed|null $value null )
   Merge provided config with existing config. Unlike config() which does a recursive merge for nested keys, this method does a simple merge.
Setting a specific value:
$this->config('key', $value);
   Setting a nested value:
$this->config('some.nested.key', $value);
   Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
   Parameters
- 
     string|array 
$key - The key to set, or a complete array of configs.
 - 
     mixed|null 
$valueoptional null - The value to set.
 
Returns
$this The object itself.
Properties detail
$_defaultConfigsource
protected array
Default configuration values.
logEnable logging of exceptions.skipLogList of exceptions to skip logging. Exceptions that extend one of the listed exceptions will also not be logged. Example:'skipLog' => ['Cake\Error\NotFoundException', 'Cake\Error\UnauthorizedException']traceShould error logs include stack traces?
[
    'skipLog' => [],
    'log' => true,
    'trace' => false,
]
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 https://api.cakephp.org/3.3/class-Cake.Error.Middleware.ErrorHandlerMiddleware.html