3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo() { static $a = 0; echo $a; $a = $a + 1; } foo(); // 0 foo(); // 1 foo(); // 2
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EZMpb
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                               'foo'
          1        DO_FCALL                                      0          
   10     2        INIT_FCALL                                               'foo'
          3        DO_FCALL                                      0          
   11     4        INIT_FCALL                                               'foo'
          5        DO_FCALL                                      0          
          6      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EZMpb
function name:  foo
number of ops:  5
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   BIND_STATIC                                              !0
    5     1        ECHO                                                     !0
    6     2        ADD                                              ~1      !0, 1
          3        ASSIGN                                                   !0, ~1
    7     4      > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
171.8 ms | 1396 KiB | 16 Q