3v4l.org

run code in 300+ PHP versions simultaneously
<?php $someJson = '{"":""}'; $myObject = json_decode($someJson); $newJson = json_encode($myObject); var_dump($someJson, $newJson, $someJson === $newJson);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LZ8ZX
function name:  (null)
number of ops:  16
compiled vars:  !0 = $someJson, !1 = $myObject, !2 = $newJson
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%7B%22%22%3A%22%22%7D'
    4     1        INIT_FCALL                                               'json_decode'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $4      
          4        ASSIGN                                                   !1, $4
    5     5        INIT_FCALL                                               'json_encode'
          6        SEND_VAR                                                 !1
          7        DO_ICALL                                         $6      
          8        ASSIGN                                                   !2, $6
    7     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAR                                                 !0
         11        SEND_VAR                                                 !2
         12        IS_IDENTICAL                                     ~8      !0, !2
         13        SEND_VAL                                                 ~8
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
178.48 ms | 1394 KiB | 19 Q