3v4l.org

run code in 300+ PHP versions simultaneously
<?php $json = '{"1850":1,"1851":2,"1853":3,"1854":4,"1855":5}'; var_dump(json_decode($json));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/XCamu
function name:  (null)
number of ops:  8
compiled vars:  !0 = $json
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%7B%221850%22%3A1%2C%221851%22%3A2%2C%221853%22%3A3%2C%221854%22%3A4%2C%221855%22%3A5%7D'
    5     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'json_decode'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5        SEND_VAR                                                 $2
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
165.99 ms | 1394 KiB | 17 Q