mb_strlen exists but mb_check_encoding undefined about polyfill HOT 9 CLOSED

keradus@keradus:~$ php --version
PHP 7.1.0RC3 (cli) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.1.0-dev, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.1.0RC3, Copyright (c) 1999-2016, by Zend Technologies
keradus@keradus:~$ php -m | grep mb
keradus@keradus:~$ php -r "var_dump(function_exists('mb_strlen'));"
bool(false)

from polyfill.

buahahaha :D good one ;)
maybe you should propose WP to use this polyfill, as it's more full ? (eg we have that mb_check_encoding)

from polyfill.

but all of this functions from this library still not defined.
I debug into the bootstrap.php and see that function_exists('mb_strlen'); returns true

so, your PHP claims it knows about mb_strlen function, so polyfill is working properly for you. The method is registered not by module, but via this polyfill.

from polyfill.

@keradus yes, I expect this behaviour. But instead I have fatal error :

Fatal error: Uncaught Error: Call to undefined function Symfony\Component\Validator\Constraints\mb_check_encoding() in /srv/www/wordpress-default/wp-content/plugins/setka-editor/vendor/symfony/validator/Constraints/LengthValidator.php on line 42

The code from my first message I writed directly in bootstrap.php before if (!function_exists('mb_strlen')). So right in bootstrap.php function_exists('mb_strlen') returns true but all of this functions such as mb_check_encoding() not defined because I don't have an extension (manually disabled) and if (!function_exists('mb_strlen')) statement working not as expected.

from polyfill.

Ah!. I understand what it is. As you can noticed before - I'm using this libraby (Symfony Validator) in WordPress. And WordPress have their own mb_strlen() in wp-includes/compat.php:

if ( ! function_exists( 'mb_strlen' ) ) :
    function mb_strlen( $str, $encoding = null ) {
        return _mb_strlen( $str, $encoding );
    }
endif;

Oh! Look like I'm in trouble :)

from polyfill.

@keradus Thank you for your suggestions :) Spent a few hours to prepare server with PHP 7.0 and all the environment similar to the "bug reported environment". And only after it thought to search for function mb_strlen in WordPress source code :)

I'd really like to WordPress used this and other Symfony packages (librarys) but it takes a long time for developement and older WordPress versions still unmodified (its bad for plugin developers who cares about backward compatibility).

from polyfill.

well. one way or another I think that this issue could be closed.

from polyfill.

Yes. Thank you for quick replies and support!

from polyfill.

glad to help !

from polyfill.