3v4l.org

run code in 300+ PHP versions simultaneously
<?php $col = 3; $col = $col == 4 ? 1 : ++$col; echo $col;
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/o2ZIf
function name:  (null)
number of ops:  10
compiled vars:  !0 = $col
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 3
    3     1        IS_EQUAL                                                 !0, 4
          2      > JMPZ                                                     ~2, ->5
          3    >   QM_ASSIGN                                        ~3      1
          4      > JMP                                                      ->7
          5    >   PRE_INC                                          ~4      !0
          6        QM_ASSIGN                                        ~3      ~4
          7    >   ASSIGN                                                   !0, ~3
    4     8        ECHO                                                     !0
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
174.84 ms | 1392 KiB | 13 Q