I already installed mbstring but still get: "WARNING: Module php-mbstring ini file doesn't-CodePudding

It all started when I wanted to install phpmyadmin in an apache2 server on Raspbian, with php7.3. And I got the following error when I went to "localhost/phpmyadmin":

Fatal error: Uncaught Error: Call to undefined function PhpMyAdmin\mb_strpos() in /usr/share/phpmyadmin/libraries/classes/Url.php:257 Stack trace:
#0 /usr/share/phpmyadmin/libraries/classes/Url.php(208): PhpMyAdmin\Url::getArgSeparator() 
#1 /usr/share/phpmyadmin/libraries/classes/Url.php(171): PhpMyAdmin\Url::getCommonRaw(Array, '?')
#2 /usr/share/phpmyadmin/libraries/classes/Core.php(765): PhpMyAdmin\Url::getCommon(Array) 
#3 /usr/share/phpmyadmin/libraries/classes/Core.php(338): PhpMyAdmin\Core::linkURL('https://secure....') 
#4 /usr/share/phpmyadmin/libraries/classes/Core.php(367): PhpMyAdmin\Core::getPHPDocLink('book.mbstring.p...') 
#5 /usr/share/phpmyadmin/libraries/classes/Core.php(995): PhpMyAdmin\Core::warnMissingExtension('mbstring') 
#6 /usr/share/phpmyadmin/libraries/common.inc.php(110): PhpMyAdmin\Core::checkExtensions()
#7 /usr/share/phpmyadmin/index.php(23): require_once('/usr/share/phpm...') 
#8 {main} thrown in /usr/share/phpmyadmin/libraries/classes/Url.php on line 257

Then, I installed mbstring through: apt install php7.3-mbstring.

But when I type "a2enmod php-mbstring" or "phpenmod php-mbstring", I get this on the console: WARNING: Module php7.3-mbstring ini file doesn't exist under /etc/php/7.3/mods-available, however if I do an ls in that directory, I get this (mbstring.ini is inside of it):

root@raspberrypi:/etc/php/7.3/mods-available# ls

calendar.ini  fileinfo.ini  iconv.ini     opcache.ini  posix.ini     sockets.ini  sysvshm.ini
ctype.ini     ftp.ini       json.ini      pdo.ini      readline.ini  sysvmsg.ini  tokenizer.ini
exif.ini      gettext.ini   mbstring.ini  phar.ini     shmop.ini     sysvsem.ini

UPDATE:

I just wrote: "phpenmod -v 7.3 mbstring" and solved the error.

I got information from the link CherryDT sent me.

CodePudding user response：

The module is called mbstring and not php-mbstring or php7.3-mbstring (apparently you confused the names of the module and the package):

phpenmod mbstring

More info here.