# XMLWriter::writePi

# xmlwriter_write_pi

(PHP 5 >= 5.1.2, PHP 7, PECL xmlwriter >= 0.1.0)

XMLWriter::writePi -- xmlwriter_write_pi — Writes a PI

### 说明

面向对象风格

XMLWriter::writePi ( string `$target` , string `$content` ) : bool

过程化风格

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

Writes a processing instruction.

### 参数

`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.

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。

### 参见

- XMLWriter::startPi() - Create start PI tag
- XMLWriter::endPi() - End current PI