One other thing, php does work, this is a roundcube specific error.
here is the relevant part of my info.php file:
Jun 30 2018 16:37:36
Configure Command './configure' '--with-layout=GNU'
'--with-config-file-scan-dir=/usr/local/etc/php' '--disable-all'
'--enable-libxml' '--enable-mysqlnd' '--with-libxml-dir=/usr/local'
'--with-pcre-regex=/usr/local' '--with-zlib-dir=/usr'
'--program-prefix=' '--enable-fpm' '--with-fpm-user=www'
'--with-fpm-group=www' '--enable-embed' '--with-regex=php'
'--with-zend-vm=CALL' '--prefix=/usr/local' '--localstatedir=/var'
'--mandir=/usr/local/man' '--infodir=/usr/local/info/'
'--build=i386-portbld-freebsd11.1'
'build_alias=i386-portbld-freebsd11.1' 'CC=cc' 'CFLAGS=-O2 '-pipe'
'-fstack-protector' '-fno-strict-aliasing'' 'LDFLAGS=
'-fstack-protector'' 'LIBS=-lpthread' 'CPPFLAGS=' 'CPP=cpp' 'CXX=c++'
'CXXFLAGS=-O2 '-pipe' '-fstack-protector' '-fno-strict-aliasing'
Server API
FPM/FastCGI
Virtual Directory Support disabled
Configuration File (php.ini) Path /usr/local/etc
Loaded Configuration File /usr/local/etc/php.ini
Scan this dir for additional .ini files /usr/local/etc/php
Additional .ini files parsed /usr/local/etc/php/ext-10-opcache.ini,
/usr/local/etc/php/ext-18-session.ini,
/usr/local/etc/php/ext-20-bcmath.ini,
/usr/local/etc/php/ext-20-calendar.ini,
/usr/local/etc/php/ext-20-ctype.ini,
/usr/local/etc/php/ext-20-curl.ini, /usr/local/etc/php/ext-20-dom.ini,
/usr/local/etc/php/ext-20-filter.ini,
/usr/local/etc/php/ext-20-ftp.ini,
/usr/local/etc/php/ext-20-gettext.ini,
/usr/local/etc/php/ext-20-gmp.ini, /usr/local/etc/php/ext-20-hash.ini,
/usr/local/etc/php/ext-20-iconv.ini,
/usr/local/etc/php/ext-20-imap.ini,
/usr/local/etc/php/ext-20-json.ini,
/usr/local/etc/php/ext-20-ldap.ini,
/usr/local/etc/php/ext-20-mcrypt.ini,
/usr/local/etc/php/ext-20-mysqli.ini,
/usr/local/etc/php/ext-20-openssl.ini,
/usr/local/etc/php/ext-20-pdo.ini,
/usr/local/etc/php/ext-20-posix.ini,
/usr/local/etc/php/ext-20-pspell.ini,
/usr/local/etc/php/ext-20-readline.ini,
/usr/local/etc/php/ext-20-simplexml.ini,
/usr/local/etc/php/ext-20-sqlite3.ini,
/usr/local/etc/php/ext-20-tokenizer.ini,
/usr/local/etc/php/ext-20-xml.ini,
/usr/local/etc/php/ext-20-xmlwriter.ini,
/usr/local/etc/php/ext-30-pdo_sqlite.ini,
/usr/local/etc/php/ext-30-phar.ini,
/usr/local/etc/php/ext-30-xmlreader.ini
PHP API 20131106
PHP Extension 20131226
Zend Extension 220131226
Zend Extension Build API220131226,NTS
PHP Extension Build API20131226,NTS
Debug Build no
Thread Safety disabled
Zend Signal Handling disabled
Zend Memory Manager enabled
Zend Multibyte Support disabled
IPv6 Support enabled
DTrace Support disabled
Registered PHP Streamsphp, file, glob, data, http, ftp, https, ftps, phar
Registered Stream Socket Transportstcp, udp, unix, udg, ssl, sslv3,
tls, tlsv1.0, tlsv1.1, tlsv1.2
Registered Stream Filtersstring.rot13, string.toupper, string.tolower,
string.strip_tags, convert.*, consumed, dechunk, convert.iconv.*,
mcrypt.*, mdecrypt.*
