3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump((bool) "0"); var_dump((string)(bool) "0"); var_dump((int)(string)(bool) "0"); var_dump((string)(int)(string)(bool) "0");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/crAun
function name:  (null)
number of ops:  23
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      '0'
          6        CAST                                          6  ~3      ~2
          7        SEND_VAL                                                 ~3
          8        DO_ICALL                                                 
    4     9        INIT_FCALL                                               'var_dump'
         10        BOOL                                             ~5      '0'
         11        CAST                                          6  ~6      ~5
         12        CAST                                          4  ~7      ~6
         13        SEND_VAL                                                 ~7
         14        DO_ICALL                                                 
    5    15        INIT_FCALL                                               'var_dump'
         16        BOOL                                             ~9      '0'
         17        CAST                                          6  ~10     ~9
         18        CAST                                          4  ~11     ~10
         19        CAST                                          6  ~12     ~11
         20        SEND_VAL                                                 ~12
         21        DO_ICALL                                                 
         22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
159.59 ms | 1395 KiB | 15 Q