3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(&$x) {} foo(new StdClass);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cLpE9
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'foo'
          1        NEW                                              $0      'StdClass'
          2        DO_FCALL                                      0          
          3        SEND_VAR_NO_REF                               0          $0
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cLpE9
function name:  foo
number of ops:  2
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
          1      > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
157.51 ms | 1396 KiB | 14 Q