Published in Laravel 5

Laravel 5: Finding What Traits a Class Uses With class_uses_recursive

By John Koster

The class_uses_recursive function is functional similar to the trait_uses_recursive function. It will return an array of all the traits that are used by the given class, its traits and any base classes.

#Signature

The signature of the class_uses_recursive function is:

1function class_uses_recursive(

2    $class

3);

#Example Use

Using the ExampleClass from the previous example:

1$traits = class_uses_recursive('ExampleClass');

the $traits array would contain the following values:

1array(4) {

2    ["TraitTwo"]   "TraitTwo"

3    ["TraitThree"] "TraitThree"

4    ["TraitOne"]   "TraitOne"

5    ["TraitFour"]  "TraitFour"

6}

it should be noted that the above values contain TraitFour which is used by ExampleClass's base class. Additionally, the class_uses_recursive function will not work on class instances. If a class instance is supplied an ErrorException will be thrown.

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