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<?php var_dump(pow(2,53)-1 > PHP_INT_MAX);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/O3vvV
function name:  (null)
number of ops:  10
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'pow'
          2        SEND_VAL                                                 2
          3        SEND_VAL                                                 53
          4        DO_ICALL                                         $0      
          5        SUB                                              ~1      $0, 1
          6        IS_SMALLER                                       ~2      9223372036854775807, ~1
          7        SEND_VAL                                                 ~2
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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