Composer - the requested PHP extension mbstring is missing from your system

PhpComposer PhpMbstring

Php Problem Overview

I've recently tried to install package through Composer, but I have got an error the requested PHP extension mbstring is missing from your system. I removed semicolon from php.ini, but it still doesn't work. What should I do?

Php Solutions

Solution 1 - Php

sudo apt-get install php-mbstring

# if your are using php 7.1
sudo apt-get install php7.1-mbstring

# if your are using php 7.2
sudo apt-get install php7.2-mbstring

# if your are using php 7.4
sudo apt-get install php7.4-mbstring

Solution 2 - Php

  1. find your php.ini
  2. make sure the directive extension_dir=C:\path\to\server\php\ext is set and adjust the path (set your PHP extension dir)
  3. make sure the directive extension=php_mbstring.dll is set (uncommented)

If this doesn't work and the php_mbstring.dll file is missing, then the PHP installation of this stack is simply broken.

Solution 3 - Php

For php 7.1

sudo apt-get install php7.1-mbstring

Cheers!

Solution 4 - Php

I set the PHPRC variable and uncommented zend_extension=php_opcache.dll in php.ini and all works well.

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Attributions

All content for this solution is sourced from the original question on Stackoverflow.

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Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionJozef CipaView Question on Stackoverflow
Solution 1 - PhpPranay AryalView Answer on Stackoverflow
Solution 2 - PhpJens A. KochView Answer on Stackoverflow
Solution 3 - PhpMichelView Answer on Stackoverflow
Solution 4 - PhpJozef CipaView Answer on Stackoverflow