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<?php class ClassLoader { private $classMap = 'Class Map'; } $loader = new ClassLoader; $func_without_closure_bind = function() use ($loader) { var_dump($loader->classMap); }; $func_with_closure_bind = Closure::bind($func_without_closure_bind, null, ClassLoader::class); $func_with_closure_bind(); //$func_without_closure_bind();
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.3.6
string(9) "Class Map"
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213.32 ms | 403 KiB | 291 Q