3v4l.org

run code in 300+ PHP versions simultaneously
<?php $state = (bool) filter_var(true, FILTER_VALIDATE_BOOLEAN); var_dump($state);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WQguR
function name:  (null)
number of ops:  10
compiled vars:  !0 = $state
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'filter_var'
          1        SEND_VAL                                                 <true>
          2        SEND_VAL                                                 258
          3        DO_ICALL                                         $1      
          4        BOOL                                             ~2      $1
          5        ASSIGN                                                   !0, ~2
    5     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
200.1 ms | 1394 KiB | 17 Q