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

Bug php not load extension install

create file php.ini

# /etc/php/7.2/cli/conf.d/php.ini
extension=json.so
extension=phar.so
extension=iconv.so