3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public static $var = "Hello"; public function output() { $a = "var"; echo($this->{$a}); } } $a = new A(); $a->output();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mi7FM
function name:  (null)
number of ops:  6
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   NEW                                              $1      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   12     3        INIT_METHOD_CALL                                         !0, 'output'
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Class A:
Function output:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mi7FM
function name:  output
number of ops:  4
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   ASSIGN                                                   !0, 'var'
    7     1        FETCH_OBJ_R                                      ~2      !0
          2        ECHO                                                     ~2
    8     3      > RETURN                                                   null

End of function output

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
163.59 ms | 1393 KiB | 13 Q