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<?php ini_set('mbstring.substitute_character',0x58); var_dump(mb_convert_encoding("AAA\xf0\x28\x8c\x28BBB",'UTF-8','UTF-8'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7mKW9
function name:  (null)
number of ops:  13
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'ini_set'
          1        SEND_VAL                                                 'mbstring.substitute_character'
          2        SEND_VAL                                                 88
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'mb_convert_encoding'
          6        SEND_VAL                                                 'AAA%F0%28%8C%28BBB'
          7        SEND_VAL                                                 'UTF-8'
          8        SEND_VAL                                                 'UTF-8'
          9        DO_ICALL                                         $1      
         10        SEND_VAR                                                 $1
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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