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<?php $a='-123'; Echo (int)$a; If((int)$a) echo 'Hợp lệ';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/Tp6Hr
function name:  (null)
number of ops:  7
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '-123'
    4     1        CAST                                          4  ~2      !0
          2        ECHO                                                     ~2
    5     3        CAST                                          4  ~3      !0
          4      > JMPZ                                                     ~3, ->6
          5    >   ECHO                                                     'H%E1%BB%A3p+l%E1%BB%87'
          6    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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