3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ob = new stdClass(); $ob->pro = 'test'; var_dump(json_encode($ob)); var_dump(json_encode(array('pro' => 'test'))); var_dump(json_encode(array('test')));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/FveqW
function name:  (null)
number of ops:  24
compiled vars:  !0 = $ob
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $1      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    4     3        ASSIGN_OBJ                                               !0, 'pro'
          4        OP_DATA                                                  'test'
    6     5        INIT_FCALL                                               'var_dump'
          6        INIT_FCALL                                               'json_encode'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                         $5      
          9        SEND_VAR                                                 $5
         10        DO_ICALL                                                 
    7    11        INIT_FCALL                                               'var_dump'
         12        INIT_FCALL                                               'json_encode'
         13        SEND_VAL                                                 <array>
         14        DO_ICALL                                         $7      
         15        SEND_VAR                                                 $7
         16        DO_ICALL                                                 
    8    17        INIT_FCALL                                               'var_dump'
         18        INIT_FCALL                                               'json_encode'
         19        SEND_VAL                                                 <array>
         20        DO_ICALL                                         $9      
         21        SEND_VAR                                                 $9
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.99 ms | 1399 KiB | 17 Q