3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode(array('key'=>intval(1)));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/61pNn
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'json_encode'
          1        CAST                                          4  ~0      1
          2        INIT_ARRAY                                       ~1      ~0, 'key'
          3        SEND_VAL                                                 ~1
          4        DO_ICALL                                         $2      
          5        ECHO                                                     $2
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
164.8 ms | 1398 KiB | 15 Q