3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = json_encode('{"asd": {"":""}}'); print json_decode($x);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DkSVH
function name:  (null)
number of ops:  9
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'json_encode'
          1        SEND_VAL                                                 '%7B%22asd%22%3A+%7B%22%22%3A%22%22%7D%7D'
          2        DO_ICALL                                         $1      
          3        ASSIGN                                                   !0, $1
    4     4        INIT_FCALL                                               'json_decode'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $3      
          7        ECHO                                                     $3
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.55 ms | 939 KiB | 18 Q