(PECL cairo >= 0.1.0)
Cairo::availableSurfaces -- cairo_available_surfaces — Retrieves all available surfaces
Object oriented style (method):
Procedural style:
Returns an array with the available surface backends
此函数没有参数。
A list-type array with all available surface backends.
Example #1 Object oriented style
<?php
/* Object Oriented style */
var_dump(Cairo::availableSurfaces());
?>
以上例程的输出类似于：
array(6) {
[0]=>
string(5) "IMAGE"
[1]=>
string(3) "PNG"
[2]=>
string(3) "PDF"
[3]=>
string(2) "PS"
[4]=>
string(3) "SVG"
[5]=>
string(5) "WIN32"
}
Example #2 Procedural style
<?php
/* Procedural style */
var_dump(cairo_available_surfaces());
?>
以上例程的输出类似于：
array(6) {
[0]=>
string(5) "IMAGE"
[1]=>
string(3) "PNG"
[2]=>
string(3) "PDF"
[3]=>
string(2) "PS"
[4]=>
string(3) "SVG"
[5]=>
string(5) "WIN32"
}