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<?php abstract class ParentTest { public static function fromDB(string $name = '') { $instance = new static(); if (!empty($name)) { $instance->setName($name)->read(); } return $instance; } public abstract function read(); public abstract function setName(string $name): self; } class Child extends ParentTest { public function read() { } public function setName(string $name) :ParentTest { return $this; } } $child = new Child();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IYf0Q
function name:  (null)
number of ops:  4
compiled vars:  !0 = $child
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   29     0  E >   NEW                                                  $1      'Child'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $1
          3      > RETURN                                                       1

Class ParentTest:
Function fromdb:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 12
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/IYf0Q
function name:  fromDB
number of ops:  14
compiled vars:  !0 = $name, !1 = $instance
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   RECV_INIT                                            !0      ''
    6     1        NEW                              static              $2      
          2        DO_FCALL                                          0          
          3        ASSIGN                                                       !1, $2
    7     4        ISSET_ISEMPTY_CV                                     ~5      !0
          5        BOOL_NOT                                             ~6      ~5
          6      > JMPZ                                                         ~6, ->12
    8     7    >   INIT_METHOD_CALL                                             !1, 'setName'
          8        SEND_VAR_EX                                                  !0
          9        DO_FCALL                                          0  $7      
         10        INIT_METHOD_CALL                                             $7, 'read'
         11        DO_FCALL                                          0          
   10    12    > > RETURN                                                       !1
   11    13*     > RETURN                                                       null

End of function fromdb

Function read:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IYf0Q
function name:  read
number of ops:  1
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   13     0  E > > RETURN                                                       null

End of function read

Function setname:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IYf0Q
function name:  setName
number of ops:  3
compiled vars:  !0 = $name
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   15     0  E >   RECV                                                 !0      
          1        VERIFY_RETURN_TYPE                                           
          2      > RETURN                                                       null

End of function setname

End of class ParentTest.

Class Child:
Function read:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IYf0Q
function name:  read
number of ops:  1
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   22     0  E > > RETURN                                                       null

End of function read

Function setname:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IYf0Q
function name:  setName
number of ops:  6
compiled vars:  !0 = $name
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   24     0  E >   RECV                                                 !0      
   25     1        FETCH_THIS                                           ~1      
          2        VERIFY_RETURN_TYPE                                           ~1
          3      > RETURN                                                       ~1
   26     4*       VERIFY_RETURN_TYPE                                           
          5*     > RETURN                                                       null

End of function setname

Function fromdb:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 12
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/IYf0Q
function name:  fromDB
number of ops:  14
compiled vars:  !0 = $name, !1 = $instance
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   RECV_INIT                                            !0      ''
    6     1        NEW                              static              $2      
          2        DO_FCALL                                          0          
          3        ASSIGN                                                       !1, $2
    7     4        ISSET_ISEMPTY_CV                                     ~5      !0
          5        BOOL_NOT                                             ~6      ~5
          6      > JMPZ                                                         ~6, ->12
    8     7    >   INIT_METHOD_CALL                                             !1, 'setName'
          8        SEND_VAR_EX                                                  !0
          9        DO_FCALL                                          0  $7      
         10        INIT_METHOD_CALL                                             $7, 'read'
         11        DO_FCALL                                          0          
   10    12    > > RETURN                                                       !1
   11    13*     > RETURN                                                       null

End of function fromdb

End of class Child.

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