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<?php $subject = '[["2","subject2","0","0"],["4","ccd","50","5"]]'; print_r(json_decode($subject, true));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1elH2
function name:  (null)
number of ops:  9
compiled vars:  !0 = $subject
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                       !0, '%5B%5B%222%22%2C%22subject2%22%2C%220%22%2C%220%22%5D%2C%5B%224%22%2C%22ccd%22%2C%2250%22%2C%225%22%5D%5D'
    3     1        INIT_FCALL                                                   'print_r'
          2        INIT_FCALL                                                   'json_decode'
          3        SEND_VAR                                                     !0
          4        SEND_VAL                                                     <true>
          5        DO_ICALL                                             $2      
          6        SEND_VAR                                                     $2
          7        DO_ICALL                                                     
          8      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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