(PECL cairo >= 0.1.0)
cairo_ps_get_levels — Description
The function description goes here.
本函数还未编写文档，仅有参数列表。
此函数没有参数。
What is returned on success and failure
When does this function issue E_* level errors, and/or throw exceptions.
Example #1 cairo_ps_get_levels() example
Any text that describes the purpose of the example, or what goes on in the example should be here.
<?php
/* ... */
?>
以上例程的输出类似于：
...