3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ser = 'a:0:{}'; if(unserialize($ser)){ echo '1'; } //var_dump(unserialize($ser));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/BQ1dg
function name:  (null)
number of ops:  7
compiled vars:  !0 = $ser
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'a%3A0%3A%7B%7D'
    5     1        INIT_FCALL                                               'unserialize'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $2      
          4      > JMPZ                                                     $2, ->6
    6     5    >   ECHO                                                     '1'
    9     6    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.75 ms | 1394 KiB | 15 Q