php-mysql installed but not showing in phpinfo

Question

I just upgraded my phpversion from php 7.1 to 7.3. Unfortunately I can't seem to get mysql working. I'm on a centos 7 box using yum package manager. These are my installed php packages. I've rebooted and tried uninstalling, reinstalling the mysql extension and it still won't show up in the phpinfo. The only mention of mysql is in the credits section.

php73.x86_64                                                                 2.0-1.el7.remi                                                        @remi-safe
php73-common.x86_64                                                          7.3.28-1.el7.ius                                                      @ius
php73-json.x86_64                                                            7.3.28-1.el7.ius                                                      @ius
php73-mbstring.x86_64                                                        7.3.28-1.el7.ius                                                      @ius
php73-pdo.x86_64                                                             7.3.28-1.el7.ius                                                      @ius
php73-pdo-dblib.x86_64                                                       7.3.28-1.el7.ius                                                      @ius
php73-php-cli.x86_64                                                         7.3.28-1.el7.remi                                                     @remi-safe
php73-php-common.x86_64                                                      7.3.28-1.el7.remi                                                     @remi-safe
php73-php-json.x86_64                                                        7.3.28-1.el7.remi                                                     @remi-safe
php73-php-mysqlnd.x86_64                                                     7.3.28-1.el7.remi                                                     @remi-safe
php73-php-pdo.x86_64                                                         7.3.28-1.el7.remi                                                     @remi-safe
php73-php-pear.noarch                                                        1:1.10.12-7.el7.remi                                                  @remi-safe
php73-php-pecl-mcrypt.x86_64                                                 1.0.4-1.el7.remi                                                      @remi-safe
php73-php-pecl-mysql.x86_64                                                  1.0.0-0.20.20180226.647c933.el7.remi                                  @remi-safe
php73-php-pecl-xdebug3.x86_64                                                3.0.4-1.el7.remi                                                      @remi-safe
php73-php-process.x86_64                                                     7.3.28-1.el7.remi                                                     @remi-safe
php73-php-soap.x86_64                                                        7.3.28-1.el7.remi                                                     @remi-safe
php73-php-xml.x86_64                                                         7.3.28-1.el7.remi                                                     @remi-safe
php73-runtime.x86_64                                                         2.0-1.el7.remi                                                        @remi-safe

Answer 1

 php73-php-common.x86_64 7.3.28-1.el7.remi @remi-safe php73-common.x86_64 7.3.28-1.el7.ius @ius

You are mixing 2 PHP stacks from 2 different providers, IUS and Remi.

You should only use one.

For remi repository, I recommend you follow the Wizard instructions

Notice: I don't see any mod_php or fpm package in your list...

Then add extension=yourExtension.so to php.ini,

Never do this, with RPM, each package provides the proper configuration file for its extension(s). After installation you need to restart the httpd or php-fpm service.

Answer 2

If you are using php-fpm, you can use php-fpm -i | grep php.ini php-fpm -i | grep php.ini to find the loaded configuration file.

If using php-cli, php -i | grep php.ini php -i | grep php.ini , and so on.

On some occasions, php-fpm and php-cli aren't using the same php.ini.

php -i -> php-cli

php-fpm -i -> php-fpm

Then add extension=yourExtension.so to php.ini, and restart your php-fpm, using php-fpm -m | grep yourExtension php-fpm -m | grep yourExtension to check if the extension is loaded, it means work if printed you extension name.

If there's not, then, you need to find the extension_dir of php: php-fpm -i | grep extension_dir php-fpm -i | grep extension_dir , and check if there is yourExtension.so file, if there's not, it means your extension installed to a wrong place, you need make a soft link or simply cp yourExtension.so to that place.

If you're using multi-version php, you need check which php you are using.