Centos6 ships with php 5.3, a rather antique version and not the version we use on our web server.  I installed php70 from remi repositories but it did not work as advertised, upgrade php did not remove all pieces of 5.3, so we ended up with a mix of php 5.3 and php 7.0 that did not play together well and caused errors on every update.

     I deleted ALL php from this machine today and am in the process of re-installing PHP 7.0 so temporarily there will be many missing modules until this process is completed.