Missing php_soap.dll in Ubuntu 16

Question

I am trying install composer on Ubuntu 16.

curl -sS https://getcomposer.org/installer | php

and receiving warning:

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/php_soap.dll' - /usr/lib/php/20151012/php_soap.dll: cannot open shared object file: No such file or directory in Unknown on line 0
All settings correct for using Composer
Downloading 1.2.0...
Composer successfully installed to: //composer.phar
Use it: php composer.phar

I instaled soap using:

sudo apt-get install php-soap

in /usr/lib/php/20151012/php_soap.dll directory really there is no such e file

after php -i | grep -i soap :

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/php_soap.dll' - /usr/lib/php/20151012/php_soap.dll: cannot open shared object file: No such file or directory in Unknown on line 0
/etc/php/7.0/cli/conf.d/20-soap.ini,
soap
Soap Client => enabled
Soap Server => enabled
soap.wsdl_cache => 1 => 1
soap.wsdl_cache_dir => /tmp => /tmp
soap.wsdl_cache_enabled => 1 => 1
soap.wsdl_cache_limit => 5 => 5
soap.wsdl_cache_ttl => 86400 => 86400

How to resolve problem with php_soap.dll ?

Solution

First try to search where is the .dll file mentioned with the following command

grep -r "soap.dll" /etc/php/7.0/cli/

If you get any matches from the command, search for a ; before them. If they don't have it, open the file(s) and comment the lines e.

nano /etc/php/7.0/cli/php.ini

Then press ctrl + W to invoke the search, then paste the string you're searching for, in this case soap.dll and you should reach the line of that string. Put a ; in front of it and save the file with ctrl + X, followed by Y and enter.

Try running php -i | grep -i soap and to see if you still get any errors.