(PHP 5)
DOMDocument::createProcessingInstruction — Creates new PI node
This 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。
The target of the processing instruction.
The content of the processing instruction.
The new DOMProcessingInstruction or FALSE if an error occured.
Raised if target contains an invalid character.