bool exists(string|TemplateReferenceInterface $name) Returns true if the template exists. Parameters string|TemplateReferenceInterface $name A template name or a TemplateReferenceInterface instance Return Value bool true if the template exists, false otherwise Exceptions RuntimeException if the engine cannot handle the template name

class InvalidArgumentException extends InvalidArgumentException implements ExceptionInterface Base InvalidArgumentException for Dependency Injection component.

bool isSingleId() Returns whether the class has a single-column ID. Return Value bool Returns true if the class has a single-column ID and false otherwise.

Scope|null leave() Closes current scope and returns parent one. Return Value Scope|null

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

string getAlnum(string $key, string $default = '') Returns the alphabetic characters and digits of the parameter value. Parameters string $key The parameter key string $default The default value if the parameter key does not exist Return Value string The filtered value

FormInterface|null getParent() Returns the parent form. Return Value FormInterface|null The parent form or null if there is none

class PhpAdapter extends AbstractAdapter deprecated since 2.8, to be removed in 3.0. Use Finder instead. PHP finder engine implementation. Methods bool isSupported() Tests adapter support for current platform. from AbstractAdapter AdapterInterface setFollowLinks(bool $followLinks) from AbstractAdapter AdapterInterface setMode(int $mode) from AbstractAdapter AdapterInterface setDepths(array $depths) from AbstractAdapter AdapterInterface setExclude(array $exclude)

FormInterface getForm() Returns the form at the source of the event. Return Value FormInterface

bool|int getStrength() Not supported. Get current collator's strength. Return Value bool|int The current collator's strength or false on failure Exceptions MethodNotImplementedException See also http://www.php.net/manual/en/collator.getstrength.php