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@ 2018-08-24T08:47:21Z

<?php

namespace{
    function foo(){ echo "I'm (g)root!\n"; }
    function foo2(){ echo "I'm (g)root2!\n"; }
    function foo3(){ echo "I'm (g)root3!\n"; }
}

namespace Baz{

    Class Test {
        function foobar(){
            foo3();
        }
    }
    
    Class Test2 {
        function foobar(){
            foo3();
        }
    }
    
    echo 'Function resolved at runtime so output changes' . "\n";
    foo();
    if(true){function foo(){ echo "I'm not (g)root!\n"; }}
    foo();
    
    echo '------' . "\n";
    
    echo 'Call for test purpose before Baz\foo3() has been defined' . "\n";
    $test = new Test();
    $test->foobar();
    
    echo '------' . "\n";
    
    echo 'Function resolved at parsing time so output does not change' . "\n";
    foo2();
    function foo2(){ echo "I'm not (g)root2!\n"; }
    foo2();
    
    echo '------' . "\n";
    
    echo 'Function resolved at runtime so output changes' . "\n";
    foo3();
    eval("namespace Baz; function foo3(){echo 'I\'m not (g)root3!\n';}");
    foo3();
    
    echo '------' . "\n";
    
    echo 'Method has already been called so using the old version' . "\n";
    $test->foobar();
    
    echo 'Method is called for the first time so using the new version' . "\n";
    $test2 = new Test2();
    $test2->foobar();
    
    
}

Output for git.master, git.master_jit, rfc.property-hooks: Function resolved at runtime so output changes I'm (g)root! I'm not (g)root! ------ Call for test purpose before Baz\foo3() has been defined I'm (g)root3! ------ Function resolved at parsing time so output does not change I'm not (g)root2! I'm not (g)root2! ------ Function resolved at runtime so output changes I'm (g)root3! I'm not (g)root3! ------ Method has already been called so using the old version I'm (g)root3! Method is called for the first time so using the new version I'm not (g)root3!

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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