Hello, i have a problem when i start php. I'm using Freeswitch to route incoming call to a php script, but when i run the script, i have the following error:

root@back-1:/usr/local/freeswitch/scripts# ./exemple.php
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php5/20131226/ESL.so' - /usr/lib/php5/20131226/ESL.so: undefined symbol: _ZN13ESLconnection6filterEPKcS1_ in Unknown on line 0
PHP Warning:  dl(): Unable to load dynamic library '/usr/lib/php5/20131226/ESL.so' - /usr/lib/php5/20131226/ESL.so: undefined symbol: _ZN13ESLconnection6filterEPKcS1_ in /usr/local/src/freeswitch/libs/esl/php/ESL.php on line 22
PHP Fatal error:  Call to undefined function new_ESLconnection() in /usr/local/src/freeswitch/libs/esl/php/ESL.php on line 155
root@back-1:/usr/local/freeswitch/scripts#

I've been doing from last week to resolve the problem, but with no results?

 Any ideas please?