(PHP 5, PHP 7, PHP 8)
DOMDocument::createProcessingInstruction — Creates new PI node
$target, string $data = ""): DOMProcessingInstruction|falseThis function creates a new instance of class DOMProcessingInstruction. 此节点出现在文档中,除非是用诸如 DOMNode->appendChild() 等函数来将其插入。
targetThe target of the processing instruction.
dataThe content of the processing instruction.
The new DOMProcessingInstruction or false if an error occurred.
DOM_INVALID_CHARACTER_ERR
Raised if target contains an invalid character.