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<?php abstract class Foo { private $x; private function __construct() { $this->x = new \DateTimeImmutable(); } /** * @return static */ public static function create() { return new static(); } } class Bar extends Foo { private $a; public function __construct($a) { $this->a = $a; } } $bar = new Bar(1);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v7fQf
function name:  (null)
number of ops:  5
compiled vars:  !0 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   31     0  E >   NEW                                              $1      'Bar'
          1        SEND_VAL_EX                                              1
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $1
          4      > RETURN                                                   1

Class Foo:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v7fQf
function name:  __construct
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   NEW                                              $1      'DateTimeImmutable'
          1        DO_FCALL                                      0          
          2        ASSIGN_OBJ                                               'x'
          3        OP_DATA                                                  $1
   10     4      > RETURN                                                   null

End of function __construct

Function create:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v7fQf
function name:  create
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   NEW                          static              $0      
          1        DO_FCALL                                      0          
          2      > RETURN                                                   $0
   18     3*     > RETURN                                                   null

End of function create

End of class Foo.

Class Bar:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v7fQf
function name:  __construct
number of ops:  4
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   25     0  E >   RECV                                             !0      
   27     1        ASSIGN_OBJ                                               'a'
          2        OP_DATA                                                  !0
   28     3      > RETURN                                                   null

End of function __construct

Function create:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v7fQf
function name:  create
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   NEW                          static              $0      
          1        DO_FCALL                                      0          
          2      > RETURN                                                   $0
   18     3*     > RETURN                                                   null

End of function create

End of class Bar.

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