Flow PHP

AggregatingFunction extends FunctionTree

aggregate() : void
children() : array<int, FunctionTree>: Every operand of this node that is an expression, in constructor order.
outputName() : string: Decided in the constructor, never mutated.
references() : null|array<int, Reference>
resolved() : bool: True when this node and every node in children() can answer returns().
returns() : Type<string|int, mixed>: An OptionalType return declares the produced column nullable; there is no nullable() peer.
value() : null|array<string|int, mixed>|bool|float|int|object|string
withChildren() : static: A copy of this node with $children in place of children(): same count, same order, same per-element narrowing. Never mutates $this.


    public
                    aggregate(Row $row, FlowContext $context) : void

Every operand of this node that is an expression, in constructor order.


    public
                    children() : array<int, FunctionTree>

Raw scalars, enums, Types and scope-introducing bodies are fields, not children.

array<int, FunctionTree>

Decided in the constructor, never mutated.


    public
                    outputName() : string

string


    public
                    references() : null|array<int, Reference>

null|array<int, Reference> —

references this aggregator reads, or null when they cannot be statically enumerated (disables spill column pruning)

True when this node and every node in children() can answer returns().


    public
                    resolved() : bool

bool

An OptionalType return declares the produced column nullable; there is no nullable() peer.


    public
                    returns() : Type<string|int, mixed>

Type<string|int, mixed>


    public
                    value() : null|array<string|int, mixed>|bool|float|int|object|string

A copy of this node with $children in place of children(): same count, same order, same per-element narrowing. Never mutates $this.


    public
                    withChildren(array<int, FunctionTree> $children) : static

static