mixed remove(string $name) Removes an attribute. Parameters string $name Return Value mixed The removed value or null when it does not exist

bool start() Starts the session storage. Return Value bool True if session started Exceptions RuntimeException If session fails to start.

Classes RenderTokenParser Token Parser for the render tag.

static string|null fqcnToBlockPrefix(string $fqcn) Converts a fully-qualified class name to a block prefix. Parameters string $fqcn The fully-qualified class name Return Value string|null The block prefix or null if not a valid FQCN

initialize(array $array) Initializes the Bag. Parameters array $array

stampNew(int $lifetime = null) Stamps a new session's metadata. Parameters int $lifetime Sets the cookie lifetime for the session cookie. A null value will leave the system settings unchanged, 0 sets the cookie to expire with browser session. Time is in seconds, and is not a Unix timestamp.

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

followRedirects(bool $followRedirect = true) Sets whether to automatically follow redirects or not. Parameters bool $followRedirect Whether to follow redirects

Classes ResolvedTypeDataCollectorProxy Proxy that invokes a data collector when creating a form and its view. ResolvedTypeFactoryDataCollectorProxy Proxy that wraps resolved types into {@link ResolvedTypeDataCollectorProxy} instances.

Finder|SplFileInfo[] sortByAccessedTime() Sorts files and directories by the last accessed time. This is the time that the file was last accessed, read or written to. This can be slow as all the matching files and directories must be retrieved for comparison. Return Value Finder|SplFileInfo[] The current Finder instance See also SortableIterator