3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = 0; $a = 2; $b &= ~$a; var_dump(decbin($b));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Mb7Lq
function name:  (null)
number of ops:  11
compiled vars:  !0 = $b, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 0
    4     1        ASSIGN                                                   !1, 2
    5     2        BW_NOT                                           ~4      !1
          3        ASSIGN_OP                                    10          !0, ~4
    7     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'decbin'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $6      
          8        SEND_VAR                                                 $6
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
172.72 ms | 1394 KiB | 17 Q