Building complete list of updates ..
Now updating libapache2-mod-php5.6 libapache2-mod-php7.0 php5.6 php5.6-bcmath php5.6-bz2 php5.6-cgi php5.6-cli php5.6-common php5.6-curl php5.6-gd php5.6-json php5.6-mbstring php5.6-mcrypt php5.6-mysql php5.6-opcache php5.6-readline php5.6-xml php5.6-zip php7.0 php7.0-bcmath php7.0-bz2 php7.0-cgi php7.0-cli php7.0-common php7.0-curl php7.0-gd php7.0-json php7.0-mbstring php7.0-mcrypt php7.0-mysql php7.0-opcache php7.0-readline php7.0-xml php7.0-zip ..
Installing package(s) with command apt-get -y install libapache2-mod-php5.6 libapache2-mod-php7.0 php5.6 php5.6-bcmath php5.6-bz2 php5.6-cgi php5.6-cli php5.6-common php5.6-curl php5.6-gd php5.6-json php5.6-mbstring php5.6-mcrypt php5.6-mysql php5.6-opcache php5.6-readline php5.6-xml php5.6-zip php7.0 php7.0-bcmath php7.0-bz2 php7.0-cgi php7.0-cli php7.0-common php7.0-curl php7.0-gd php7.0-json php7.0-mbstring php7.0-mcrypt php7.0-mysql php7.0-opcache php7.0-readline php7.0-xml php7.0-zip ..
Reading package lists...
Building dependency tree...
Reading state information...
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:
libapache2-mod-php5.6 : Depends: libssl1.1 (>= 1.1.0) but it is not installable
libapache2-mod-php7.0 : Depends: libssl1.1 (>= 1.1.0) but it is not installable
php5.6-cgi : Depends: libssl1.1 (>= 1.1.0) but it is not installable
php5.6-cli : Depends: libssl1.1 (>= 1.1.0) but it is not installable
php5.6-common : Depends: libssl1.1 (>= 1.1.0) but it is not installable
php7.0-cgi : Depends: libssl1.1 (>= 1.1.0) but it is not installable
php7.0-cli : Depends: libssl1.1 (>= 1.1.0) but it is not installable
php7.0-common : Depends: libssl1.1 (>= 1.1.0) but it is not installable
E: Unable to correct problems, you have held broken packages.
.. install failed!
No packages were installed. Check the messages above for the cause of the error.
That seems to be a packaging or repository issue. We don't provide the php packages, so we're not really able to fix that. It's not clear what repos you're using or what OS/version is in use here, so I can't even really google things to see if I can give more guidance on how to fix it.
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thanks for pointing this relative newb to linux in the right direction! it was indeed a repository issue.