php_add_tick_function  502 ext/pcntl/pcntl.c 	php_add_tick_function(pcntl_signal_dispatch);
php_add_tick_function 5731 ext/standard/basic_functions.c 		php_add_tick_function(run_user_tick_functions);
php_add_tick_function   30 main/php_ticks.h PHPAPI void php_add_tick_function(void (*func)(int));