3v4l.org

run code in 300+ PHP versions simultaneously
<?php $t = 'GB'; if ($t != ('GB' || 'gb')) { echo "1"; } else { echo "0"; } var_dump('GB' || 'gb');
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 = 6
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hKpbG
function name:  (null)
number of ops:  10
compiled vars:  !0 = $t
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'GB'
    5     1        BOOL_NOT                                         ~2      !0
          2      > JMPZ                                                     ~2, ->5
          3    >   ECHO                                                     '1'
          4      > JMP                                                      ->6
    6     5    >   ECHO                                                     '0'
    8     6    >   INIT_FCALL                                               'var_dump'
          7        SEND_VAL                                                 <true>
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
211.63 ms | 1394 KiB | 15 Q