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public
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getParent(): static|null
Get the parent of the object
Get the parent of the object
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public
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getChildren(): static[]
Get the children of the object
Get the children of the object
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#
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public
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setParent(static|null $parent): static
Set or unset the parent of the object
Set or unset the parent of the object
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$child->setParent($parent) is equivalent to
$parent->addChild($child)
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$child->setParent(null) is equivalent to
$parent->removeChild($child)
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#
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public
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addChild(static $child): static
Add a child to the object
Add a child to the object
Equivalent to $child->setParent($parent).
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public
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removeChild(static $child): static
Remove a child from the object
Remove a child from the object
Equivalent to $child->setParent(null).
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#
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public
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getDepth(): int
Get the length of the path to the object's root node
Get the length of the path to the object's root node
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public
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countDescendants(): int
Get the number of objects descended from the object
Get the number of objects descended from the object
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#
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