PHP extension ext-intl * is missing

Sometimes you will encounter ext-intl * is missing while you install PHP applications. You can fix it in the following ways:

Solution 1 - Install the missing extension

Solution 2 - Enable extension=intl in php.ini file

Solution 3 - Install PHP mbstring

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Solution 1 - Install the missing extension

Install the missing extension with the following command this should solve 80% of the times

sudo apt-get install php7.4-intl

NOTE: Make sure to observe the php7.4 version in the above command. Replace the php version respectively.

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Solution 2 - Enable extension=intl in php.ini file

To know which php.ini configuration file is loaded in your system you can run the following command

php -i | grep Loaded Configuration

The command output will look somewhat the following way

Loaded Configuration File => /etc/php/7.4/cli/php.ini
libXML Loaded Version => 20910

Then go to the respective file /etc/php/7.4/cli/php.ini and uncomment like the following

Before

;extension=intl

After (Remove the preceding semicolon ;)

extension=intl

Don't forget to restart your PHP server. You can do it with the following command

sudo service php-fpm restart
sudo service php restart

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Solution 3 - Install PHP mbstring

It's quite rare to see this issue, but can be easily fixed by running the following command

sudo apt-get install php7.4-mbstring

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