Class ErrorHandlerMiddleware
Error handling middleware.
Traps exceptions and converts them into HTML or content-type appropriate error pages using the CakePHP ExceptionRenderer.
Property Summary
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$_config protected
array<string, mixed>Runtime config
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$_configInitialized protected
boolWhether the config property has already been configured with defaults
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$_defaultConfig protected
array<string, mixed>Default configuration values.
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$errorHandler protected
Cake\Error\ErrorHandler|nullError handler instance.
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$exceptionTrap protected
Cake\Error\ExceptionTrap|nullExceptionTrap instance
Method Summary
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__construct() public
Constructor
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_configDelete() protected
Deletes a single config key.
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_configRead() protected
Reads a config key.
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_configWrite() protected
Writes a config key.
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configShallow() public
Merge provided config with existing config. Unlike
config()which does a recursive merge for nested keys, this method does a simple merge. -
getConfig() public
Returns the config.
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getConfigOrFail() public
Returns the config for this specific key.
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getErrorHandler() protected
Get a error handler instance
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getExceptionTrap() protected
Get a exception trap instance
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handleException() public
Handle an exception and generate an error response
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handleInternalError() protected
Handle internal errors.
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handleRedirect() public
Convert a redirect exception into a response.
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process() public
Wrap the remaining middleware with error handling.
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setConfig() public
Sets the config.
Method Detail
__construct() ¶ public
__construct(Cake\Error\ErrorHandlerCake\Error\ExceptionTrap|array $errorHandler = [])Constructor
Parameters
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Cake\Error\ErrorHandlerCake\Error\ExceptionTrap|array$errorHandler optional The error handler instance or config array.
Throws
InvalidArgumentException_configDelete() ¶ protected
_configDelete(string $key): voidDeletes a single config key.
Parameters
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string$key Key to delete.
Returns
voidThrows
Cake\Core\Exception\CakeExceptionif attempting to clobber existing config
_configRead() ¶ protected
_configRead(string|null $key): mixedReads a config key.
Parameters
-
string|null$key Key to read.
Returns
mixed_configWrite() ¶ protected
_configWrite(array<string, mixed>|string $key, mixed $value, string|bool $merge = false): voidWrites a config key.
Parameters
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array<string, mixed>|string$key Key to write to.
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mixed$value Value to write.
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string|bool$merge optional True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
Returns
voidThrows
Cake\Core\Exception\CakeExceptionif attempting to clobber existing config
configShallow() ¶ public
configShallow(array<string, mixed>|string $key, mixed|null $value = null): $thisMerge 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->configShallow('key', $value);Setting a nested value:
$this->configShallow('some.nested.key', $value);Updating multiple config settings at the same time:
$this->configShallow(['one' => 'value', 'another' => 'value']);Parameters
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array<string, mixed>|string$key The key to set, or a complete array of configs.
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mixed|null$value optional The value to set.
Returns
$thisgetConfig() ¶ public
getConfig(string|null $key = null, mixed $default = null): mixedReturns the config.
Usage
Reading the whole config:
$this->getConfig();Reading a specific value:
$this->getConfig('key');Reading a nested value:
$this->getConfig('some.nested.key');Reading with default value:
$this->getConfig('some-key', 'default-value');Parameters
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string|null$key optional The key to get or null for the whole config.
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mixed$default optional The return value when the key does not exist.
Returns
mixedgetConfigOrFail() ¶ public
getConfigOrFail(string $key): mixedReturns the config for this specific key.
The config value for this key must exist, it can never be null.
Parameters
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string$key The key to get.
Returns
mixedThrows
InvalidArgumentExceptiongetErrorHandler() ¶ protected
getErrorHandler(): Cake\Error\ErrorHandlerGet a error handler instance
Returns
Cake\Error\ErrorHandlergetExceptionTrap() ¶ protected
getExceptionTrap(): Cake\Error\ExceptionTrapGet a exception trap instance
Returns
Cake\Error\ExceptionTraphandleException() ¶ public
handleException(Throwable $exception, Psr\Http\Message\ServerRequestInterface $request): Psr\Http\Message\ResponseInterfaceHandle an exception and generate an error response
Parameters
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Throwable$exception The exception to handle.
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Psr\Http\Message\ServerRequestInterface$request The request.
Returns
Psr\Http\Message\ResponseInterfacehandleInternalError() ¶ protected
handleInternalError(): Psr\Http\Message\ResponseInterfaceHandle internal errors.
Returns
Psr\Http\Message\ResponseInterfacehandleRedirect() ¶ public
handleRedirect(Cake\Http\Exception\RedirectException $exception): Psr\Http\Message\ResponseInterfaceConvert a redirect exception into a response.
Parameters
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Cake\Http\Exception\RedirectException$exception The exception to handle
Returns
Psr\Http\Message\ResponseInterfaceprocess() ¶ public
process(ServerRequestInterface $request, RequestHandlerInterface $handler): Psr\Http\Message\ResponseInterfaceWrap the remaining middleware with error handling.
Processes an incoming server request in order to produce a response. If unable to produce the response itself, it may delegate to the provided request handler to do so.
Parameters
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ServerRequestInterface$request The request.
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RequestHandlerInterface$handler The request handler.
Returns
Psr\Http\Message\ResponseInterfacesetConfig() ¶ public
setConfig(array<string, mixed>|string $key, mixed|null $value = null, bool $merge = true): $thisSets the config.
Usage
Setting a specific value:
$this->setConfig('key', $value);Setting a nested value:
$this->setConfig('some.nested.key', $value);Updating multiple config settings at the same time:
$this->setConfig(['one' => 'value', 'another' => 'value']);Parameters
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array<string, mixed>|string$key The key to set, or a complete array of configs.
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mixed|null$value optional The value to set.
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bool$merge optional Whether to recursively merge or overwrite existing config, defaults to true.
Returns
$thisThrows
Cake\Core\Exception\CakeExceptionWhen trying to set a key that is invalid.
Property Detail
$_configInitialized ¶ protected
Whether the config property has already been configured with defaults
Type
bool$_defaultConfig ¶ protected
Default configuration values.
Ignored if contructor is passed an ExceptionTrap instance.
Configuration keys and values are shared with ExceptionTrap.
This class will pass its configuration onto the ExceptionTrap
class if you are using the array style constructor.
Type
array<string, mixed>