[root@librenms librenms]# ./validate.php
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
====================================
Component | Version
--------- | -------
LibreNMS  | 1.33-54-g44cb59d
DB Schema | 215
PHP       | 7.1.10
MySQL     | 5.1.73
RRDTool   | 1.3.8
SNMP      | NET-SNMP 5.5
====================================

[OK]    Database connection successful
[OK]    Database schema correct
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/gv.so' - /usr/lib64/php/modules/gv.so: undefined symbol: zval_is_true in Unknown on line 0
[root@librenms librenms]#