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<?php class Foo { public function bar() { } } function test (callable $arg) { } $foo = new Foo(); var_dump(is_callable(array($foo, 'bar'))); var_dump(is_callable(array(0 => $foo, 1 => 'bar'))); test(array($foo, 'bar')); test(array(0 => $foo, 1 => 'bar'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1GJgt
function name:  (null)
number of ops:  30
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   NEW                                              $1      'Foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   16     3        INIT_FCALL                                               'var_dump'
          4        INIT_FCALL                                               'is_callable'
          5        INIT_ARRAY                                       ~4      !0
          6        ADD_ARRAY_ELEMENT                                ~4      'bar'
          7        SEND_VAL                                                 ~4
          8        DO_ICALL                                         $5      
          9        SEND_VAR                                                 $5
         10        DO_ICALL                                                 
   17    11        INIT_FCALL                                               'var_dump'
         12        INIT_FCALL                                               'is_callable'
         13        INIT_ARRAY                                       ~7      !0, 0
         14        ADD_ARRAY_ELEMENT                                ~7      'bar', 1
         15        SEND_VAL                                                 ~7
         16        DO_ICALL                                         $8      
         17        SEND_VAR                                                 $8
         18        DO_ICALL                                                 
   19    19        INIT_FCALL                                               'test'
         20        INIT_ARRAY                                       ~10     !0
         21        ADD_ARRAY_ELEMENT                                ~10     'bar'
         22        SEND_VAL                                                 ~10
         23        DO_FCALL                                      0          
   20    24        INIT_FCALL                                               'test'
         25        INIT_ARRAY                                       ~12     !0, 0
         26        ADD_ARRAY_ELEMENT                                ~12     'bar', 1
         27        SEND_VAL                                                 ~12
         28        DO_FCALL                                      0          
         29      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1GJgt
function name:  test
number of ops:  2
compiled vars:  !0 = $arg
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   RECV                                             !0      
   12     1      > RETURN                                                   null

End of function test

Class Foo:
Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1GJgt
function name:  bar
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E > > RETURN                                                   null

End of function bar

End of class Foo.

Generated using Vulcan Logic Dumper, using php 8.0.0


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