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<?php $a = (int)2 ** 63 -1; $b = 0x7FFFFFFFFFFFFFFF; var_dump(($a == $b) === true); var_dump((int)2 ** 63 -1); // -9.2233720368548E+18 var_dump((float) 0x7FFFFFFFFFFFFFFF); // 9223372036854775807 var_dump((0x7FFFFFFFFFFFFFFF == (2 ** 63 -1)) === true); // 9223372036854775807 === -9223372036854800000 // sure why not
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YiLpj
function name:  (null)
number of ops:  22
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   CAST                                          4  ~2      9.22337e+18
          1        SUB                                              ~3      ~2, 1
          2        ASSIGN                                                   !0, ~3
    4     3        ASSIGN                                                   !1, 9223372036854775807
    6     4        INIT_FCALL                                               'var_dump'
          5        IS_EQUAL                                         ~6      !0, !1
          6        TYPE_CHECK                                    8  ~7      ~6
          7        SEND_VAL                                                 ~7
          8        DO_ICALL                                                 
    8     9        INIT_FCALL                                               'var_dump'
         10        CAST                                          4  ~9      9.22337e+18
         11        SUB                                              ~10     ~9, 1
         12        SEND_VAL                                                 ~10
         13        DO_ICALL                                                 
    9    14        INIT_FCALL                                               'var_dump'
         15        CAST                                          5  ~12     9223372036854775807
         16        SEND_VAL                                                 ~12
         17        DO_ICALL                                                 
   10    18        INIT_FCALL                                               'var_dump'
         19        SEND_VAL                                                 <true>
         20        DO_ICALL                                                 
         21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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172.19 ms | 1395 KiB | 15 Q