Comment 3 for bug 1447782

This seems to have something to do with the php5 PPA you are using.

Investigating (9) php5-json [ i386 ] < 1.3.6-1+deb.sury.org~utopic+1 > ( php )
Broken php5-json:i386 Depends on phpapi-20121212 [ i386 ] < none > ( none )
  Considering php5-common:i386 3 as a solution to php5-json:i386 3
  Removing php5-json:i386 rather than change phpapi-20121212:i386
  MarkDelete php5-json [ i386 ] < 1.3.6-1+deb.sury.org~utopic+1 > ( php ) FU=0
Investigating (9) libapache2-mod-php5 [ i386 ] < none -> 5.6.4+dfsg-4ubuntu6 > ( httpd )
Broken libapache2-mod-php5:i386 Depends on php5-json [ i386 ] < 1.3.6-1+deb.sury.org~utopic+1 > ( php )
  Considering php5-json:i386 3 as a solution to libapache2-mod-php5:i386 0
  MarkKeep libapache2-mod-php5 [ i386 ] < none -> 5.6.4+dfsg-4ubuntu6 > ( httpd ) FU=0
  Holding Back libapache2-mod-php5:i386 rather than change php5-json:i386
Investigating (9) php5 [ i386 ] < 5.5.23+dfsg-1+deb.sury.org~utopic+2 -> 5.6.4+dfsg-4ubuntu6 > ( php )
Broken php5:i386 Depends on libapache2-mod-php5 [ i386 ] < none -> 5.6.4+dfsg-4ubuntu6 > ( httpd ) (>= 5.5.23+dfsg-1+deb.sury.org~utopic+2~)
  Considering libapache2-mod-php5:i386 0 as a solution to php5:i386 0
  Try Installing libapache2-mod-php5 [ i386 ] < none -> 5.6.4+dfsg-4ubuntu6 > ( httpd ) before changing php5:i386
    MarkInstall libapache2-mod-php5 [ i386 ] < none -> 5.6.4+dfsg-4ubuntu6 > ( httpd ) FU=0
    Installing php5-json as Depends of libapache2-mod-php5
        MarkKeep php5-json [ i386 ] < 1.3.6-1+deb.sury.org~utopic+1 > ( php ) FU=0
Done