3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array['F1'] = 54; $array['F3'] = 53; echo json_encode($array); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9brTZ
function name:  (null)
number of ops:  9
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN_DIM                                               !0, 'F1'
          1        OP_DATA                                                  54
    4     2        ASSIGN_DIM                                               !0, 'F3'
          3        OP_DATA                                                  53
    6     4        INIT_FCALL                                               'json_encode'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $3      
          7        ECHO                                                     $3
    8     8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
190.3 ms | 1385 KiB | 15 Q