3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump((bool) 0); var_dump((bool) 1); var_dump((bool) '0'); var_dump((bool) '1'); var_dump((bool) false); var_dump((bool) true);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TueL8
function name:  (null)
number of ops:  25
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        BOOL                                             ~0      0
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
    3     4        INIT_FCALL                                               'var_dump'
          5        BOOL                                             ~2      1
          6        SEND_VAL                                                 ~2
          7        DO_ICALL                                                 
    4     8        INIT_FCALL                                               'var_dump'
          9        BOOL                                             ~4      '0'
         10        SEND_VAL                                                 ~4
         11        DO_ICALL                                                 
    5    12        INIT_FCALL                                               'var_dump'
         13        BOOL                                             ~6      '1'
         14        SEND_VAL                                                 ~6
         15        DO_ICALL                                                 
    6    16        INIT_FCALL                                               'var_dump'
         17        BOOL                                             ~8      <false>
         18        SEND_VAL                                                 ~8
         19        DO_ICALL                                                 
    7    20        INIT_FCALL                                               'var_dump'
         21        BOOL                                             ~10     <true>
         22        SEND_VAL                                                 ~10
         23        DO_ICALL                                                 
         24      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.37 ms | 1395 KiB | 15 Q