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Bug #71812 wrong code example in php doc
Submitted: 2016-03-13 06:53 UTC Modified: 2016-03-27 04:22 UTC
From: marcosptf at yahoo dot com dot br Assigned:
Status: No Feedback Package: Scripting Engine problem
PHP Version: ? OS: Fedora 20
Private report: No CVE-ID: None
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From: marcosptf at yahoo dot com dot br
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 [2016-03-13 06:53 UTC] marcosptf at yahoo dot com dot br
Description:
------------
Hello to everyone!!!

here ===> http://php.net/manual/en/function.forward-static-call-array.php
the docs is fine, the description about this function work is totally correct, but the code example, is wrong;

i have write a php test to this function, and i see that the code example is fine but have a mistake.

here ===>  https://www.flickr.com/photos/marcosptf/25445244080/in/dateposted-public/
we can see if copy + paste from official php doc the code to run in php -a terminal, the result is a warning because the function test() is call before exist.

here ===> https://www.flickr.com/photos/marcosptf/25119350863/in/dateposted-public/
we can see if move the function test() to top of code, works fine

i have open a pr to test this function ====> https://github.com/php/php-src/pull/1810

and open this bug to someone fix this mistake.

thanks from php-sp Brazil!!!!

Test script:
---------------
<?php

class A
{
    const NAME = 'A';
    public static function test() {
        $args = func_get_args();
        echo static::NAME, " ".join(',', $args)." \n";
    }
}

class B extends A
{
    const NAME = 'B';

    public static function test() {
        echo self::NAME, "\n";
        forward_static_call_array(array('A', 'test'), array('more', 'args'));
        forward_static_call_array( 'test', array('other', 'args'));
    }
}

B::test('foo');

function test() {
        $args = func_get_args();
        echo "C ".join(',', $args)." \n";
    }

?>


Expected result:
----------------
B
B more,args 
C other,args

Actual result:
--------------
B
B more,args 
PHP Warning:  forward_static_call_array() expects parameter 1 to be a valid callback, function 'test' not found or invalid function name in php shell code on line 8
PHP Stack trace:
PHP   1. {main}() php shell code:0
PHP   2. B::test() php shell code:1
PHP   3. forward_static_call_array() php shell code:8


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 [2016-03-13 07:10 UTC] requinix@php.net
-Status: Open +Status: Feedback -Package: Documentation problem +Package: Scripting Engine problem -PHP Version: Irrelevant +PHP Version: ?
 [2016-03-13 07:10 UTC] requinix@php.net
https://3v4l.org/RPAHG

Are you testing with PHP 7? Looks like there were problems with 7.0.0-3 that have been fixed with 7.0.4.
 [2016-03-13 14:54 UTC] marcosptf at yahoo dot com dot br
that's my version, i'll test in another computer with php7.0.

[root@localhost ~]# php --version
PHP 5.5.26 (cli) (built: Jun 11 2015 08:25:51) 
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
    with Xdebug v2.2.7, Copyright (c) 2002-2015, by Derick Rethans

thanks for feedback!
 [2016-03-14 04:10 UTC] requinix@php.net
Try without Xdebug.
 [2016-03-27 04:22 UTC] php-bugs at lists dot php dot net
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
 [2017-02-05 17:48 UTC] marcosptf at yahoo dot com dot br
like requinix@php.net
says, this code ist fine and works

thanks for attention!
 
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