3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test($var) { //$var = 3; echo $var++; debug_zval_dump($var); } $a = 0; debug_zval_dump($a); test($a); debug_zval_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0uZji
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   ASSIGN                                                   !0, 0
   11     1        INIT_FCALL                                               'debug_zval_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
   12     4        INIT_FCALL                                               'test'
          5        SEND_VAR                                                 !0
          6        DO_FCALL                                      0          
   13     7        INIT_FCALL                                               'debug_zval_dump'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0uZji
function name:  test
number of ops:  7
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    6     1        POST_INC                                         ~1      !0
          2        ECHO                                                     ~1
    7     3        INIT_FCALL                                               'debug_zval_dump'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                                 
    8     6      > RETURN                                                   null

End of function test

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.63 ms | 1397 KiB | 16 Q