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<?php function run(int $a) { return $a ?: 0; } var_dump(run(-1)); var_dump(run(0)); var_dump(run(1));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iquWR
function name:  (null)
number of ops:  19
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    8     0  E >   INIT_FCALL                                                   'var_dump'
          1        INIT_FCALL                                                   'run'
          2        SEND_VAL                                                     -1
          3        DO_FCALL                                          0  $0      
          4        SEND_VAR                                                     $0
          5        DO_ICALL                                                     
    9     6        INIT_FCALL                                                   'var_dump'
          7        INIT_FCALL                                                   'run'
          8        SEND_VAL                                                     0
          9        DO_FCALL                                          0  $2      
         10        SEND_VAR                                                     $2
         11        DO_ICALL                                                     
   10    12        INIT_FCALL                                                   'var_dump'
         13        INIT_FCALL                                                   'run'
         14        SEND_VAL                                                     1
         15        DO_FCALL                                          0  $4      
         16        SEND_VAR                                                     $4
         17        DO_ICALL                                                     
         18      > RETURN                                                       1

Function run:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iquWR
function name:  run
number of ops:  5
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
    5     1        JMP_SET                                              ~1      !0, ->3
          2        QM_ASSIGN                                            ~1      0
          3      > RETURN                                                       ~1
    6     4*     > RETURN                                                       null

End of function run

Generated using Vulcan Logic Dumper, using php 8.5.0


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