If you are instrumenting an application running on Mac OSX, you need to instrument it manually using the shell script

If you are installing the on OSX, set max_execution_time to 0 in the appdynamics_agent.ini file

If you have another INI file that is loaded after appdynamics_agent.ini, and sets max_execution time to a non-zero value, set max_execution_time to 0 in the php.ini file instead.