Can't install zip and mb multibyte modules fresh install

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Steps to reproduce
1. Visit my almost install at https://pressanyshare.net/
2.
3.

Expected behaviour
Tell us what should happen
I would like to see the install wizard

Actual behaviour
Tell us what happens instead
I see two messages:
PHP module zip not installed.
PHP module mb multibyte not installed.
Please ask your server administrator to install the module.
Server configuration
Operating system: Ubuntu 16.04
Web server:Apache 2
Database:Mysql
PHP version: 7.08
ownCloud version (see ownCloud admin page): 9.1.1?
Updated from an older ownCloud or fresh install: fresh
Special configuration (external storage, external authentication, reverse proxy, server-side-encryption):

ownCloud log (data/owncloud.log)

Please paste possible errors in the following code block, see

Integrity status for oC9+

Login as admin user into your ownCloud and access
http://example.com/index.php/settings/integrity/failed
paste the results here.

I have figured out how to install other PHP modules that were missing. I'm down to these two and cannot find an answer.
I have tried:
sudo apt-get install owncloud-deps-php7.0
with these results:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
owncloud-deps-php7.0 : Depends: php7.0-intl but it is not installable
Depends: php7.0-mcrypt but it is not installable
Depends: php7.0-mbstring but it is not installable
Depends: php7.0-imap but it is not installable
Depends: php7.0-zip but it is not installable
E: Unable to correct problems, you have held broken packages.
++++++++++++++++++++++++++++++++++++++++++++++
sudo apt-get install php-zip
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package php-zip
++++++++++++++++++++++++++++++++++++
apt-get install owncloud-deps-php7.0
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
owncloud-deps-php7.0 : Depends: php7.0-intl but it is not installable
Depends: php7.0-mcrypt but it is not installable
Depends: php7.0-mbstring but it is not installable
Depends: php7.0-imap but it is not installable
Depends: php7.0-zip but it is not installable
E: Unable to correct problems, you have held broken packages.
++++++++++++++++++++++++++++++++++++++++++++++++++++

sudo pecl install zip

downloading zip-1.13.5.tgz ...
Starting to download zip-1.13.5.tgz (316,993 bytes)
.................done: 316,993 bytes
119 source files, building
running: phpize
sh: 1: phpize: not found
ERROR: `phpize' failed
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
I don't even know where to begin with mb multibyte as it does not appear on the modules list and I'm not sure what labels to use. I have tried php-mulitbyte, php-mb-multibyte, php-mb.
List is at https://www.howtoinstall.co/en/ubuntu/xenial/

I have searched these boards plus stackoverflow, php.net, ubuntu, howtoforge and more.

owncloud log shows no errors

All I need is PHP moulde zip and PHP module mb multibyte fefore I reach the next hurdle.

Please help.

(Yes, I have restarted Apache2 and the server several times.)

Hi,

moving to the miscellaneous category as this is not an ownCloud issue itself. If no one in here is answering you might need to contact a community dedicated to your used distro and ask for support there.