3v4l.org

run code in 500+ PHP versions simultaneously
<?php ini_set("display_errors",1); error_reporting(E_ALL); var_dump($a); $a=null; var_dump($a); unset($a); var_dump($a); $a["not_an_array"]=13; var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rMJh4
function name:  (null)
number of ops:  24
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                                   'ini_set'
          1        SEND_VAL                                                     'display_errors'
          2        SEND_VAL                                                     1
          3        DO_ICALL                                                     
    3     4        INIT_FCALL                                                   'error_reporting'
          5        SEND_VAL                                                     30719
          6        DO_ICALL                                                     
    4     7        INIT_FCALL                                                   'var_dump'
          8        SEND_VAR                                                     !0
          9        DO_ICALL                                                     
    5    10        ASSIGN                                                       !0, null
    6    11        INIT_FCALL                                                   'var_dump'
         12        SEND_VAR                                                     !0
         13        DO_ICALL                                                     
    7    14        UNSET_CV                                                     !0
    8    15        INIT_FCALL                                                   'var_dump'
         16        SEND_VAR                                                     !0
         17        DO_ICALL                                                     
    9    18        ASSIGN_DIM                                                   !0, 'not_an_array'
         19        OP_DATA                                                      13
   10    20        INIT_FCALL                                                   'var_dump'
         21        SEND_VAR                                                     !0
         22        DO_ICALL                                                     
         23      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
161.62 ms | 2359 KiB | 16 Q