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<?php $k=0.1+0.7; var_dump($k); //return 0.8 var_dump(0.8 == $k); //return false $res = (string)$k - json_encode($k); print($res."\n\n"); //return 1.1102230246252E-16 ini_set('precision', '-1'); $k=0.1+0.7; var_dump($k); //return 0.7999999999999999 var_dump(0.8 == $k); //return false $res = (string)$k - json_encode($k); print($res); //return 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Mr4KM
function name:  (null)
number of ops:  36
compiled vars:  !0 = $k, !1 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 0.8
    4     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
    5     4        INIT_FCALL                                               'var_dump'
          5        IS_EQUAL                                         ~4      !0, 0.8
          6        SEND_VAL                                                 ~4
          7        DO_ICALL                                                 
    7     8        CAST                                          6  ~6      !0
          9        INIT_FCALL                                               'json_encode'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                         $7      
         12        SUB                                              ~8      ~6, $7
         13        ASSIGN                                                   !1, ~8
    8    14        CONCAT                                           ~10     !1, '%0A%0A'
         15        ECHO                                                     ~10
   10    16        INIT_FCALL                                               'ini_set'
         17        SEND_VAL                                                 'precision'
         18        SEND_VAL                                                 '-1'
         19        DO_ICALL                                                 
   11    20        ASSIGN                                                   !0, 0.8
   12    21        INIT_FCALL                                               'var_dump'
         22        SEND_VAR                                                 !0
         23        DO_ICALL                                                 
   13    24        INIT_FCALL                                               'var_dump'
         25        IS_EQUAL                                         ~14     !0, 0.8
         26        SEND_VAL                                                 ~14
         27        DO_ICALL                                                 
   15    28        CAST                                          6  ~16     !0
         29        INIT_FCALL                                               'json_encode'
         30        SEND_VAR                                                 !0
         31        DO_ICALL                                         $17     
         32        SUB                                              ~18     ~16, $17
         33        ASSIGN                                                   !1, ~18
   16    34        ECHO                                                     !1
         35      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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