Composer installing: the json extension is missing

Question

I wrote in Linux Terminal: curl -s https://getcomposer.org/installer | php It said:

 #!/usr/bin/env php
Some settings on your machine make Com         


        

Answer 1

On ubuntu 14.04 for me, I found that the default permissions for the php.ini file /etc/php5/cli/ restrict the file to Root user only, so if you run:

php -m

as non-root, you get far fewer modules than if you run sudo php -m

The fix for this was for me to perform:

sudo chmod a+rx /etc/php5/cli/* -R 

which grants read and execute permissions for that folder and it's contents to everyone.