Online PHP editor | output for srIno

@ 2024-10-01T16:00:52Z

<?php

namespace Foo{
    class Bar
    {
        public static function testClass(): \Closure
        {
            return function(){};
        }
    }
    
    function testFunc(): \Closure
    {
        return function(){};
    }


    $closureFromGlobalScope = function(){};    
}

namespace {
    $closures = [
        'Anonymous function created in a class' => Foo\Bar::testClass(),
        'Anonymous function created in a function' => Foo\testFunc(),
        'Anonymous function created in a global scope' => $closureFromGlobalScope,
        'First class callable of a static method' => Foo\Bar::testClass(...),
        'First class callable of a function' => Foo\testFunc(...),
    ];
    
    foreach ($closures as $name => $closure) {
        $reflection = new ReflectionFunction($closure);
        echo <<<EOS
        {$name}:
          getName              {$reflection->getName()}
          getNamespaceName     {$reflection->getNamespaceName()}
          getClosureScopeClass {$reflection->getClosureScopeClass()?->getName()}
        EOS, "\n\n";
    }
}

Output for 8.4.1 - 8.4.12: Anonymous function created in a class: getName {closure:Foo\Bar::testClass():8} getNamespaceName getClosureScopeClass Foo\Bar Anonymous function created in a function: getName {closure:Foo\testFunc():14} getNamespaceName getClosureScopeClass Anonymous function created in a global scope: getName {closure:/in/srIno:18} getNamespaceName getClosureScopeClass First class callable of a static method: getName testClass getNamespaceName getClosureScopeClass Foo\Bar First class callable of a function: getName Foo\testFunc getNamespaceName Foo getClosureScopeClass
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25: Anonymous function created in a class: getName Foo\{closure} getNamespaceName Foo getClosureScopeClass Foo\Bar Anonymous function created in a function: getName Foo\{closure} getNamespaceName Foo getClosureScopeClass Anonymous function created in a global scope: getName Foo\{closure} getNamespaceName Foo getClosureScopeClass First class callable of a static method: getName testClass getNamespaceName getClosureScopeClass Foo\Bar First class callable of a function: getName Foo\testFunc getNamespaceName Foo getClosureScopeClass

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