3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(null ?: 'default'); var_dump('item' ?: 'default');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dmSUW
function name:  (null)
number of ops:  11
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        JMP_SET                                          ~0      null, ->3
          2        QM_ASSIGN                                        ~0      'default'
          3        SEND_VAL                                                 ~0
          4        DO_ICALL                                                 
    6     5        INIT_FCALL                                               'var_dump'
          6        JMP_SET                                          ~2      'item', ->8
          7        QM_ASSIGN                                        ~2      'default'
          8        SEND_VAL                                                 ~2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
170.31 ms | 1394 KiB | 15 Q