Online PHP editor | output for YCrEp

@ 2018-12-18T17:42:49Z

<?php

namespace Foo {
    class App {
        const SOME_CONST = 5;
        public function __construct($a) {
            echo __METHOD__ . " $a\n";
        }
    }
}

namespace Foo\Api {
    class Api {
        private $var = 2;
        
        public function __construct($a) {
            echo __METHOD__ . " " . get_class($a) . "\n";
        }

        public function run() {
            echo __METHOD__;
        }
    }
}

namespace Whatever {
    use Foo\Api\Api;
    use Foo\App as Foo;
    
    
//    require __DIR__ . '/path/to/vendor/autoload.php';
    var_dump(
      Api::class,               // "Foo\Api\Api"
      class_exists(Api::class), // bool(true)
      Foo::class,               // "Foo\App"
      class_exists(Foo::class)  // bool(true)
    );
    $api = new Api(
      new Foo(Foo::SOME_CONST)  // Fatal Error: Class "Foo\Api\Foo" not found ...
    );
    $api->run();
}

Output for 5.6.38, 7.0.33, 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: string(11) "Foo\Api\Api" bool(true) string(7) "Foo\App" bool(true) Foo\App::__construct 5 Foo\Api\Api::__construct Foo\App Foo\Api\Api::run
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 string(11) "Foo\Api\Api" bool(true) string(7) "Foo\App" bool(true) Foo\App::__construct 5 Foo\Api\Api::__construct Foo\App Foo\Api\Api::run

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