static string escapeWithSingleQuotes(string $value) Escapes and surrounds a PHP value with single quotes. Parameters string $value A PHP value Return Value string The quoted, escaped string

static string escapeWithDoubleQuotes(string $value) Escapes and surrounds a PHP value with double quotes. Parameters string $value A PHP value Return Value string The quoted, escaped string

class Escaper Escaper encapsulates escaping rules for single and double-quoted YAML strings. Constants REGEX_CHARACTER_TO_ESCAPE Methods static bool requiresDoubleQuoting(string $value) Determines if a PHP value would require double quoting in YAML. static string escapeWithDoubleQuotes(string $value) Escapes and surrounds a PHP value with double quotes. static bool requiresSingleQuoting(string $value) Determines if a PHP value would require single quoting in YAML. stat

injectLogger()

static array getSubscribedEvents() Returns an array of event names this subscriber wants to listen to. The array keys are event names and the value can be: The method name to call (priority defaults to 0) An array composed of the method name to call and the priority An array of arrays composed of the method names to call and respective priorities, or 0 if unset For instance: array('eventName' => 'methodName') array('eventName' => array('methodName', $priority)) a

class ErrorsLoggerListener implements EventSubscriberInterface deprecated since version 2.6, to be removed in 3.0. Use the DebugHandlersListener class instead. Injects the logger into the ErrorHandler, so that it can log various errors. Methods __construct($channel, LoggerInterface $logger = null) injectLogger() static array getSubscribedEvents() Returns an array of event names this subscriber wants to listen to. Details __construct($chann

class ErrorMappingException extends RuntimeException

static unstackErrors() Unstacks stacked errors and forwards to the logger.

int traceAt(int $levels, bool $replace = false) Sets the PHP error levels for which the stack trace is preserved. Parameters int $levels A bit field of E_* constants for traced errors bool $replace Replace or amend the previous value Return Value int The previous value

int throwAt(int $levels, bool $replace = false) Sets the PHP error levels that throw an exception when a PHP error occurs. Parameters int $levels A bit field of E_* constants for thrown errors bool $replace Replace or amend the previous value Return Value int The previous value