Dom\ChildNode::before

(PHP 8 >= 8.4.0)

Dom\ChildNode::before — Adds nodes before the node

public Dom\ChildNode::before(Dom\Node|string ...$nodes): void

Adds the passed nodes before the node.

nodes: Nodes to be added before the node. Strings are automatically converted to text nodes.

没有返回值。

DOM_HIERARCHY_REQUEST_ERR: Raised if the parent is of a type that does not allow children of the type of one of the passed nodes, or if the node to put in is one of this node's ancestors or this node itself.
DOM_WRONG_DOCUMENT_ERR: Raised if one of the passed nodes was created from a different document than the one that created this node.