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<?php function test_func($value) { return (is_integer($value) && ($value == 0 || $value == 1)) || is_bool($value); } var_dump(test_func(1)); var_dump(test_func(false));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4UN3F
function name:  (null)
number of ops:  13
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'test_func'
          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                                               'test_func'
          8        SEND_VAL                                                 <false>
          9        DO_FCALL                                      0  $2      
         10        SEND_VAR                                                 $2
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Function test_func:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 3, Position 2 = 8
Branch analysis from position: 3
2 jumps found. (Code = 47) Position 1 = 5, Position 2 = 7
Branch analysis from position: 5
2 jumps found. (Code = 47) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
Branch analysis from position: 7
Branch analysis from position: 8
filename:       /in/4UN3F
function name:  test_func
number of ops:  13
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    5     1        TYPE_CHECK                                   16  ~1      !0
          2      > JMPZ_EX                                          ~1      ~1, ->8
          3    >   IS_EQUAL                                         ~2      !0, 0
          4      > JMPNZ_EX                                         ~2      ~2, ->7
          5    >   IS_EQUAL                                         ~3      !0, 1
          6        BOOL                                             ~2      ~3
          7    >   BOOL                                             ~1      ~2
          8    > > JMPNZ_EX                                         ~1      ~1, ->11
          9    >   TYPE_CHECK                                   12  ~4      !0
         10        BOOL                                             ~1      ~4
         11    > > RETURN                                                   ~1
    6    12*     > RETURN                                                   null

End of function test_func

Generated using Vulcan Logic Dumper, using php 8.0.0


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