3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f() { return false; } $var = f() || 'false'; var_dump($var);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 47) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
filename:       /in/f53FP
function name:  (null)
number of ops:  9
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                               'f'
          1        DO_FCALL                                      0  $1      
          2      > JMPNZ_EX                                         ~2      $1, ->4
          3    >   BOOL                                             ~2      'false'
          4    >   ASSIGN                                                   !0, ~2
    7     5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/f53FP
function name:  f
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E > > RETURN                                                   <false>
          1*     > RETURN                                                   null

End of function f

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
151.19 ms | 1388 KiB | 16 Q