I need to use mb_strlen to sort an array of words with diacritics, but PHP does not recognize this function, although mb_string is installed.
So, if I say
function sortByStrlen($a, $b)
{
if (mb_strlen($a, "utf-8") === mb_strlen($b, "utf-8")) {
return $a > $b;
} else {
return mb_strlen($b, "utf-8") - mb_strlen($a, "utf-8");
}
}
#sort my array
usort($myArray, 'sortByStrlen');
Won't work on my Ubuntu virtual machine that is running on the server, although it was working on my Windows local machine,
I've spent over 2,5 hours searching this issue and I've tried many solutions, both here in StackOverflow and in AskUbuntu.
These solutions did not work for me:
PHP: Call to undefined function mb_strlen() - on custom compiled PHP with mbstring enabled
Fatal error: Call to undefined function mb_strlen()
Call to undefined function yii\helpers\mb_strlen() on PHP in Yii2 Framework
https://askubuntu.com/questions/772397/mbstring-is-missing-for-phpmyadmin-in-ubuntu-16-04
This is just to name a few! I did a deep search, but I did not find what I need. Please, do not mark it as duplicate because I really need help (indeed, this problem is making me tired).
I already installed mb_string through the terminal:
sudo apt-get install php7.3-mbstring
I'm sure the mbstring module is compatible with my PHP version. Then, I uncommented the lines in php.ini to activate the mbstring module
;extension=mbstring
I also uncommented extensions:
extension_dir = "./"
I restarted the server:
sudo /etc/init.d/apache2 restart
I also see other modules, like mysql, when I use php-m.
When I run phpinfo, I can see that the mbstring is on the list of the modules being loaded.
If I run php -m on the terminal, it will give me a list of modules and mbstring is there.
HOWEVER, if I run:
<?php
var_dump(extension_loaded('mbstring'));
It will ouput:
bool(false)
Yet, after all of this, I restarted Apache and MySQL many times. So I can't see why mbstring is not being enabled!
As explained at the beginning of this post, I need to sort words with diacritics by their length. So, if you have another solution for this, I will accept it.
I'm not getting error messages because this is for production. The code is running on my personal website in a virtual machine; because it is production, PHP does not show errors by default and I don't know how to enable them.
Notes: Ubuntu version is 18.04 PHP version is 7.3
UPDATE 2
As requested by @gview, if I run dpkg -l | grep php, I get:
ii libapache2-mod-php7.3 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 server-side, HTML-embedded scripting language (Apache 2 module)
ii php-common 2:69+ubuntu18.04.1+deb.sury.org+2+php7.3 all Common files for PHP packages
ii php-gettext 1.0.12-0.1 all transitional dummy package for php-php-gettext
ii php-mbstring 2:7.3+69+ubuntu18.04.1+deb.sury.org+2+php7.3 all MBSTRING module for PHP [default]
ii php-pear 1:1.10.8+submodules+notgz-1+ubuntu18.04.1+deb.sury.org+1 all PEAR Base System
ii php-php-gettext 1.0.12-0.1 all read gettext MO files directly, without requiring anything other than PHP
ii php-xml 2:7.3+69+ubuntu18.04.1+deb.sury.org+2+php7.3 all DOM, SimpleXML, WDDX, XML, and XSL module for PHP [default]
ii php7.3 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 all server-side, HTML-embedded scripting language (metapackage)
ii php7.3-cli 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 command-line interpreter for the PHP scripting language
ii php7.3-common 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 documentation, examples and common module for PHP
ii php7.3-json 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 JSON module for PHP
ii php7.3-mbstring 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 MBSTRING module for PHP
ii php7.3-mysql 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 MySQL module for PHP
ii php7.3-opcache 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 Zend OpCache module for PHP
ii php7.3-readline 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 readline module for PHP
ii php7.3-xml 7.3.7-2+ubuntu18.04.1+deb.sury.org+1 amd64 DOM, SimpleXML, WDDX, XML, and XSL module for PHP
That may help you help me.
