XMLWriter::writePI

(PHP 5 >= 5.1.2, PECL xmlwriter >= 0.1.0)

XMLWriter::writePI — Writes a PI

面向对象风格

bool XMLWriter::writePI ( string $target , string $content )

过程化风格

bool xmlwriter_write_pi ( resource $xmlwriter , string $target , string $content )

Writes a processing instruction.

xmlwriter: 仅用于过程调用。被修改的 XMLWriter resource。此资源来自于对 xmlwriter_open_uri() 或 xmlwriter_open_memory() 的调用。
target: The target of the processing instruction.
content: The content of the processing instruction.

成功时返回 TRUE，或者在失败时返回 FALSE.