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<?php $string_hex = unpack('H*', '你好'); echo hex2bin($string_hex);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eFdlO
function name:  (null)
number of ops:  10
compiled vars:  !0 = $string_hex
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'unpack'
          1        SEND_VAL                                                 'H%2A'
          2        SEND_VAL                                                 '%E4%BD%A0%E5%A5%BD'
          3        DO_ICALL                                         $1      
          4        ASSIGN                                                   !0, $1
    3     5        INIT_FCALL                                               'hex2bin'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $3      
          8        ECHO                                                     $3
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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