3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump((bool)NULL); var_dump((bool)FALSE); var_dump((bool)0); var_dump((bool)TRUE); var_dump((bool)1); var_dump((bool)'1');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/K3M8a
function name:  (null)
number of ops:  25
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        BOOL                                             ~0      null
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'var_dump'
          5        BOOL                                             ~2      <false>
          6        SEND_VAL                                                 ~2
          7        DO_ICALL                                                 
    5     8        INIT_FCALL                                               'var_dump'
          9        BOOL                                             ~4      0
         10        SEND_VAL                                                 ~4
         11        DO_ICALL                                                 
    6    12        INIT_FCALL                                               'var_dump'
         13        BOOL                                             ~6      <true>
         14        SEND_VAL                                                 ~6
         15        DO_ICALL                                                 
    7    16        INIT_FCALL                                               'var_dump'
         17        BOOL                                             ~8      1
         18        SEND_VAL                                                 ~8
         19        DO_ICALL                                                 
    8    20        INIT_FCALL                                               'var_dump'
         21        BOOL                                             ~10     '1'
         22        SEND_VAL                                                 ~10
         23        DO_ICALL                                                 
         24      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.86 ms | 1395 KiB | 15 Q