3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "foo"; var_dump($a[7] = "abc"); $a[10] += 1; var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/PmHUQ
function name:  (null)
number of ops:  12
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'foo'
    3     1        INIT_FCALL                                               'var_dump'
          2        ASSIGN_DIM                                       ~2      !0, 7
          3        OP_DATA                                                  'abc'
          4        SEND_VAL                                                 ~2
          5        DO_ICALL                                                 
    4     6        ASSIGN_DIM_OP                +=               1          !0, 10
          7        OP_DATA                                                  1
    5     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !0
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
158.57 ms | 1394 KiB | 15 Q