PHP get_declared_traits() Function

What is PHP get_declared_traits() Function?

If you want to see all the traits used in your current script, use PHP get­_declared_traits() function.

Through trait, you can use same code in multiple classes without using inheritance. Through inheritance, a child class can inherit only one parent, but, by trait, a child class can inherit from multiple classes.

Syntax:

get_declared_traits()

Parameters:

The Function has no parameter.

Return Values:

This function returns an indexed array whose each element is a trait name.

Examples:

Example:

<pre>
<?php
trait MyTrait{}
trait MySecondTrait{}
print_r(get_declared_traits());
?>
</pre>

Output:

Array
(
    [0] => MyTrait
    [1] => MySecondTrait
)

Notes on get_declared_traits() Function:

  • When trait is used inside a namespace, the function returns the fully qualified name like namespace\trait. In PHP, Namespace is a mechanism to group related code elements (classes, interfaces, functions and constants) and it allows you to use same name for more than one class. See the example below-
    • <pre>
<?php
namespace MyNamespace;
trait MyTrait{}
print_r(get_declared_traits());
?>
</pre>

    Output:

    Array
    (
        [0] => MyNamespace\MyTrait
    )

PHP Version Support:

PHP 4, PHP 5, PHP 7, PHP 8

Summary: PHP get_declared_interfaces() Function

get_declared_traits() is a class/object type function in PHP. Use this function to see list of traits used in a script.

Reference:

https://www.php.net/manual/en/function.get-declared-traits.php