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<?php var_dump(decbin(-1)); var_dump(decbin(~PHP_INT_MAX));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cHkPX
function name:  (null)
number of ops:  13
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'decbin'
          2        SEND_VAL                                                 -1
          3        DO_ICALL                                         $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
    5     6        INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'decbin'
          8        SEND_VAL                                                 -9223372036854775808
          9        DO_ICALL                                         $2      
         10        SEND_VAR                                                 $2
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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