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<?php function accountHash($accountNumber) { return array_sum( preg_split('//u', mb_substr($accountNumber, -6), null, PREG_SPLIT_NO_EMPTY) ); } var_dump(accountHash('9876543210')); var_dump(accountHash('321')); var_dump(accountHash('Hello, World!'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GRdGN
function name:  (null)
number of ops:  19
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'accounthash'
          2        SEND_VAL                                                 '9876543210'
          3        DO_FCALL                                      0  $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
   11     6        INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'accounthash'
          8        SEND_VAL                                                 '321'
          9        DO_FCALL                                      0  $2      
         10        SEND_VAR                                                 $2
         11        DO_ICALL                                                 
   12    12        INIT_FCALL                                               'var_dump'
         13        INIT_FCALL                                               'accounthash'
         14        SEND_VAL                                                 'Hello%2C+World%21'
         15        DO_FCALL                                      0  $4      
         16        SEND_VAR                                                 $4
         17        DO_ICALL                                                 
         18      > RETURN                                                   1

Function accounthash:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GRdGN
function name:  accountHash
number of ops:  16
compiled vars:  !0 = $accountNumber
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    5     1        INIT_FCALL                                               'array_sum'
    6     2        INIT_FCALL                                               'preg_split'
          3        SEND_VAL                                                 '%2F%2Fu'
          4        INIT_FCALL                                               'mb_substr'
          5        SEND_VAR                                                 !0
          6        SEND_VAL                                                 -6
          7        DO_ICALL                                         $1      
          8        SEND_VAR                                                 $1
          9        SEND_VAL                                                 null
         10        SEND_VAL                                                 1
         11        DO_ICALL                                         $2      
         12        SEND_VAR                                                 $2
    5    13        DO_ICALL                                         $3      
    6    14      > RETURN                                                   $3
    8    15*     > RETURN                                                   null

End of function accounthash

Generated using Vulcan Logic Dumper, using php 8.0.0


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