3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace a; define('a\\true', false, true); define('a\\false', true, true); var_dump($a = true); var_dump($a = false);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WRf9R
function name:  (null)
number of ops:  19
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_NS_FCALL_BY_NAME                                    'a%5Cdefine'
          1        SEND_VAL_EX                                              'a%5Ctrue'
          2        SEND_VAL_EX                                              <false>
          3        SEND_VAL_EX                                              <true>
          4        DO_FCALL                                      0          
    4     5        INIT_NS_FCALL_BY_NAME                                    'a%5Cdefine'
          6        SEND_VAL_EX                                              'a%5Cfalse'
          7        SEND_VAL_EX                                              <true>
          8        SEND_VAL_EX                                              <true>
          9        DO_FCALL                                      0          
    7    10        INIT_NS_FCALL_BY_NAME                                    'a%5Cvar_dump'
         11        ASSIGN                                           ~3      !0, <true>
         12        SEND_VAL_EX                                              ~3
         13        DO_FCALL                                      0          
    8    14        INIT_NS_FCALL_BY_NAME                                    'a%5Cvar_dump'
         15        ASSIGN                                           ~5      !0, <false>
         16        SEND_VAL_EX                                              ~5
         17        DO_FCALL                                      0          
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
150.83 ms | 1394 KiB | 17 Q