(PHP 5, PHP 7)
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。
target
The target of the processing instruction.
data
The 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.