3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(){ $GLOBALS['foobar'] = 'foobar'; } function bar(){ echo $GLOBALS['foobar']; } foo(); echo $GLOBALS['foobar'];
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iX6p9
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   INIT_FCALL                                               'foo'
          1        DO_FCALL                                      0          
   10     2        FETCH_R                      global              ~1      'GLOBALS'
          3        FETCH_DIM_R                                      ~2      ~1, 'foobar'
          4        ECHO                                                     ~2
          5      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iX6p9
function name:  foo
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   FETCH_W                      global              $0      'GLOBALS'
          1        ASSIGN_DIM                                               $0, 'foobar'
          2        OP_DATA                                                  'foobar'
    4     3      > RETURN                                                   null

End of function foo

Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iX6p9
function name:  bar
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   FETCH_R                      global              ~0      'GLOBALS'
          1        FETCH_DIM_R                                      ~1      ~0, 'foobar'
          2        ECHO                                                     ~1
    7     3      > RETURN                                                   null

End of function bar

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
161.22 ms | 1397 KiB | 14 Q