Composer error while installing Laravel: 'mbstring' is missing? - laravel

Question

I've decided to try out Laravel and I've been going on and off with the installation because of how tedious it is in comparison to OOP PHP.
Nontheless I'm trying to execute the 'composer create-project laravel/laravel --prefer-dist' command on my cmd(.~/wamp/www/) and it created the Laravel folder but gives me this output:
*Installing laravel/laravel (v5.1.4)
- Installing laravel/laravel (v5.1.4)
Loading from cache
Created project in C:\wamp\www\laravel
> php -r "copy('.env.example', '.env');"
Loading composer repositories with package information
Installing dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- laravel/framework v5.1.8 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- laravel/framework v5.1.7 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- laravel/framework v5.1.6 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- laravel/framework v5.1.5 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- laravel/framework v5.1.4 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- laravel/framework v5.1.3 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- laravel/framework v5.1.2 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- laravel/framework v5.1.1 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- laravel/framework v5.1.0 requires ext-mbstring * -> the requested PHP exte
nsion mbstring is missing from your system.
- Installation request for laravel/framework 5.1.* -> satisfiable by laravel
/framework[v5.1.0, v5.1.1, v5.1.2, v5.1.3, v5.1.4, v5.1.5, v5.1.6, v5.1.7, v5.1.
8].
C:\wamp\www>*
I am using windows.
I have tried installing a fresh composer, I have tried copying a laravel directory and placing it in my /www manually.
I've made sure that WAMP is using all modules and extensions according to what I read.
I've edited the php.ini file and taken of the semi-colons where necessary.
And now after a bit of Google Searching, I am lost.
Could anybody help me with this problem please, I would appreciate it.
Thanks in advance!
Below is my PHP.ini file
So I couldn't paste the whole thing, but take a look at it here:
http://jpst.it/AAhW

Answer 1

I had the same problem. Here's the solution.
Go to your php.ini file.
Locate the extension "extension=php_mbstring.dll". (ctrl+f might not work, just locate the long list with extensions in php.ini)
Uncomment the extension, you do this by removing the semicolon in the same line.
Save your php.ini file.
This probably won't be the last time you'll encounter something like this. As a rule of thumb, read the error carefully and make the appropriate change to your php.ini file.
Good luck!

Answer 2

Installing php-mbstring using,
sudo apt-get install php-mbstring
should fix this.

Answer 3

There are couple of errors when i was trying to install on my linux machine :
laravel/framework v5.4.9 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
phpunit/phpunit 5.7.9 requires ext-dom * -> the requested PHP extension dom is missing from your system.
sudo apt-get install php-mbstring
sudo apt-get install php-dom
So in short all the error such such as
jenssegers/mongodb v3.2.0 requires mongodb/mongodb ^1.0.0 -> satisfiable by mongodb/mongodb[1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2].
jenssegers/mongodb v3.2.1 requires mongodb/mongodb ^1.0.0 -> satisfiable by mongodb/mongodb[1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2].
jenssegers/mongodb v3.2.2 requires mongodb/mongodb ^1.0.0 -> satisfiable by mongodb/mongodb[1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2].
mongodb/mongodb 1.1.2 requires ext-mongodb ^1.2.0 -> the requested PHP extension mongodb is missing from your system.
you can simply run the following commands:
sudo apt-get install php-*
Thanks