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<?php $amount = '1000'; var_dump((string) abs($amount) === $amount ? 1 : -1);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 10
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/s36RE
function name:  (null)
number of ops:  14
compiled vars:  !0 = $amount
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '1000'
    4     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'abs'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5        CAST                                          6  ~3      $2
          6        IS_IDENTICAL                                             !0, ~3
          7      > JMPZ                                                     ~4, ->10
          8    >   QM_ASSIGN                                        ~5      1
          9      > JMP                                                      ->11
         10    >   QM_ASSIGN                                        ~5      -1
         11    >   SEND_VAL                                                 ~5
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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