3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(&$var) { $var++; } $a=5; foo($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CFT8d
function name:  (null)
number of ops:  5
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   ASSIGN                                                   !0, 5
    8     1        INIT_FCALL                                               'foo'
          2        SEND_REF                                                 !0
          3        DO_FCALL                                      0          
          4      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CFT8d
function name:  foo
number of ops:  3
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    4     1        PRE_INC                                                  !0
    5     2      > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.95 ms | 1388 KiB | 14 Q