<?php
echo 1+2;
?>
qiufeng@ubuntu:~$ php -dvld.active=1 test.php
Finding entry points
Branch analysis from position: 0
Return found
filename: /home/qiufeng/test.php
function name: (null)
number of ops: 3
compiled vars: none
line # * op fetch ext return operands
---------------------------------------------------------------------------------
2 0 > ADD ~0 1, 2
1 ECHO ~0
3 2 > RETURN 1
branch: # 0; line: 2- 3; sop: 0; eop: 2
path #1: 0,