1The following are examples of php_syscalls.d. 2 3This is a simple script to count executed PHP functions and system calls. 4Here it traces an example program, Code/Php/func_abc.php 5 6# php_syscalls.d 7Tracing... Hit Ctrl-C to end. 8^C 9 PID FILE TYPE NAME COUNT 10 18419 func_abc.php func func_a 1 11 18419 func_abc.php func func_b 1 12 18419 func_abc.php func func_c 1 13 18419 func_abc.php func sleep 3 14 18419 httpd syscall nanosleep 3 15 16While tracing, four functions were called - func_a(), func_b(), func_c(), and 17sleep. There were also three instances of the system call nanosleep(). 18 19This script can provide an insight to how a PHP application is interacting 20with the system, by providing both application function calls and system calls 21in the same output. 22 23