Php/docs/function.class-uses
来自菜鸟教程
class_uses
(PHP 5 >= 5.4.0, PHP 7)
class_uses — Return the traits used by the given class
说明
class_uses
( mixed $class
[, bool $autoload = true
] ) : array
This function returns an array with the names of the traits that the
given class uses. This does however not include
any traits used by a parent class.
参数
class- An object (class instance) or a string (class name).
autoload- Whether to allow this function to load the class automatically through the __autoload() magic method.
返回值
An array on success, or false on error.
范例
Example #1 class_uses() example
<?phptrait foo { }class bar { use foo;}print_r(class_uses(new bar));print_r(class_uses('bar'));function __autoload($class_name) { require_once $class_name . '.php';}// use __autoload to load the 'not_loaded' classprint_r(class_uses('not_loaded', true));?>
以上例程的输出类似于：
Array
(
[foo] => foo
)
Array
(
[foo] => foo
)
Array
(
[trait_of_not_loaded] => trait_of_not_loaded
)
