Function and class on the same file: undefined function [duplicate]

Question

This question already has answers here:

autoload functions in php [duplicate] (5 answers)

Closed 9 years ago.

I have a file with a class and a function definition, according to the PSR-0 definitions (with autoloading):

namespace Foo;

function b() {};

class Bar {}

And I have the test for that class, place in the same namespace:

namespace Foo;

class BarTest {}

When I try to access the b() function inside the test class, I get a undefined function error:

namespace Foo;

class BarTest extends PHPUnit_Framework_TestCase
{
    public function testSomething()
    {
        b();
        Foo\b();
        \b();
    }
}

Nothing seems to work. How can I call that function?

Answer 1

PHP autoloading does not support functions. However it does work for static class methods:

namespace Foo;

abstract class Util
{
    static function doSomething() {

    }
}

You can then use that class in some other files current namespace and call the static method:

use Foo\Util;

Util::doSomething();

As this is a class method and autoloading is for classes, this does work then.

Take care that the more correct way to group methods inside a namespace / class is probably making it final^Docs as well, however PHP does not support that (see Cannot create a final abstract class^{­PHP Sadness #41}).

You find this as well outlined in the following Q&A Material here on the site:

• Autoloader for functions - Jan 19 '11
• autoload functions in php - Nov 16 '10
• Does the PHP autoloader function also work with static method calls? - Jan 11 '10

Answer 2

Your function b(); must have body, change it to

function b(){};