3v4l.org

run code in 500+ PHP versions simultaneously
<?php $key = "AAAAAAAAABBBBGGGGGGGGKKKKKKKKKKKKKRRRRRRRRRRWWWWWWWWWWWWWWWWWWWWWWWWWWDDDDDDDDDDDDDDDDDDDDDDDDDDD"; var_dump(base64_decode($key)); var_dump(base64_decode($key, true)); // This is what JWT lib is using. $newKey = base64_encode(base64_decode($key)); var_dump($key, $newKey); var_dump(base64_decode($newKey)); var_dump(base64_decode($newKey, true)); // This is what JWT lib is using.
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kiMaF
function name:  (null)
number of ops:  39
compiled vars:  !0 = $key, !1 = $newKey
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'AAAAAAAAABBBBGGGGGGGGKKKKKKKKKKKKKRRRRRRRRRRWWWWWWWWWWWWWWWWWWWWWWWWWWDDDDDDDDDDDDDDDDDDDDDDDDDDD'
    4     1        INIT_FCALL                                                   'var_dump'
          2        INIT_FCALL                                                   'base64_decode'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                             $3      
          5        SEND_VAR                                                     $3
          6        DO_ICALL                                                     
    5     7        INIT_FCALL                                                   'var_dump'
          8        INIT_FCALL                                                   'base64_decode'
          9        SEND_VAR                                                     !0
         10        SEND_VAL                                                     <true>
         11        DO_ICALL                                             $5      
         12        SEND_VAR                                                     $5
         13        DO_ICALL                                                     
    7    14        INIT_FCALL                                                   'base64_encode'
         15        INIT_FCALL                                                   'base64_decode'
         16        SEND_VAR                                                     !0
         17        DO_ICALL                                             $7      
         18        SEND_VAR                                                     $7
         19        DO_ICALL                                             $8      
         20        ASSIGN                                                       !1, $8
    8    21        INIT_FCALL                                                   'var_dump'
         22        SEND_VAR                                                     !0
         23        SEND_VAR                                                     !1
         24        DO_ICALL                                                     
   10    25        INIT_FCALL                                                   'var_dump'
         26        INIT_FCALL                                                   'base64_decode'
         27        SEND_VAR                                                     !1
         28        DO_ICALL                                             $11     
         29        SEND_VAR                                                     $11
         30        DO_ICALL                                                     
   11    31        INIT_FCALL                                                   'var_dump'
         32        INIT_FCALL                                                   'base64_decode'
         33        SEND_VAR                                                     !1
         34        SEND_VAL                                                     <true>
         35        DO_ICALL                                             $13     
         36        SEND_VAR                                                     $13
         37        DO_ICALL                                                     
         38      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
186.13 ms | 1659 KiB | 16 Q