class_uses

class_uses

(No version information available, might only be in SVN)

class_uses Return the traits used by the given class

说明

array class_uses ( mixed $class [, bool $autoload = true ] )

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_implements() example

<?php

trait 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' class
print_r(class_implements('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
)

参见


  • class_implements
  • class_parents
  • class_uses
  • iterator_apply
  • iterator_count
  • iterator_to_array
  • spl_autoload
  • spl_autoload_call
  • spl_autoload_extensions
  • spl_autoload_functions
  • spl_autoload_register
  • spl_autoload_unregister
  • spl_classes
  • spl_object_hash
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