3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start();phpcredits();$d='';$c=0;foreach (str_split(reset(ob_get_clean())) as $x) {$d.=ord($x^$c);$c=$x;}echo $d;
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 15, Position 2 = 23
Branch analysis from position: 15
2 jumps found. (Code = 78) Position 1 = 16, Position 2 = 23
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 23
filename:       /in/iTJ04
function name:  (null)
number of ops:  26
compiled vars:  !0 = $d, !1 = $c, !2 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'ob_start'
          1        DO_ICALL                                                 
          2        INIT_FCALL                                               'phpcredits'
          3        DO_ICALL                                                 
          4        ASSIGN                                                   !0, ''
          5        ASSIGN                                                   !1, 0
          6        INIT_FCALL                                               'str_split'
          7        INIT_FCALL                                               'reset'
          8        INIT_FCALL                                               'ob_get_clean'
          9        DO_ICALL                                         $7      
         10        SEND_VAR_NO_REF                               0          $7
         11        DO_ICALL                                         $8      
         12        SEND_VAR                                                 $8
         13        DO_ICALL                                         $9      
         14      > FE_RESET_R                                       $10     $9, ->23
         15    > > FE_FETCH_R                                               $10, !2, ->23
         16    >   INIT_FCALL                                               'ord'
         17        BW_XOR                                           ~11     !2, !1
         18        SEND_VAL                                                 ~11
         19        DO_ICALL                                         $12     
         20        ASSIGN_OP                                     8          !0, $12
         21        ASSIGN                                                   !1, !2
         22      > JMP                                                      ->15
         23    >   FE_FREE                                                  $10
         24        ECHO                                                     !0
         25      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
181.58 ms | 1395 KiB | 25 Q