3v4l.org

run code in 300+ PHP versions simultaneously
<?php $convert = array_combine( array('ou', 'dou', 'npo', 'dop'), array( 1, 2, 3, 4 ) ); var_dump($convert); /*'<h4>Категория учреждения</h4>' + '<select name="categoryOU">' + '<option value=""></option>' + '<option value="dou">Детские сады</option>' + '<option value="ou">Образовательные учреждения</option>' + '<option value="npo">Учреждения начального и среднего профессионального образования</option>' + '<option value="dop">Учреждения дополнительного образования</option>' + '</select>' +*/ abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { var_dump(static::$instanses); if (!(static::$instanses instanceof static)) { static::$instanses = new static; } var_dump(static::$instanses); return static::$instanses; } } class A extends T { static public $instanses; } class B extends A { static public $instanses; } $t = A::getInstance(); var_dump($t); $t1 = B::getInstance(); var_dump($t1); new B(); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tZI60
function name:  (null)
number of ops:  24
compiled vars:  !0 = $convert, !1 = $t, !2 = $t1
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'array_combine'
    3     1        SEND_VAL                                                 <array>
    5     2        SEND_VAL                                                 <array>
          3        DO_ICALL                                         $3      
    2     4        ASSIGN                                                   !0, $3
   12     5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
   51     8        INIT_STATIC_METHOD_CALL                                  'A', 'getInstance'
          9        DO_FCALL                                      0  $6      
         10        ASSIGN                                                   !1, $6
   52    11        INIT_FCALL                                               'var_dump'
         12        SEND_VAR                                                 !1
         13        DO_ICALL                                                 
   54    14        INIT_STATIC_METHOD_CALL                                  'B', 'getInstance'
         15        DO_FCALL                                      0  $9      
         16        ASSIGN                                                   !2, $9
   55    17        INIT_FCALL                                               'var_dump'
         18        SEND_VAR                                                 !2
         19        DO_ICALL                                                 
   57    20        NEW                                              $12     'B'
         21        DO_FCALL                                      0          
         22        FREE                                                     $12
   62    23      > RETURN                                                   1

Class T:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tZI60
function name:  __construct
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   28     0  E > > RETURN                                                   null

End of function __construct

Function getinstance:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 12
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/tZI60
function name:  getInstance
number of ops:  19
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   32     0  E >   INIT_FCALL                                               'var_dump'
          1        FETCH_STATIC_PROP_R          global lock         ~0      'instanses'
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
   33     4        FETCH_STATIC_PROP_R          unknown             ~2      'instanses'
          5        INSTANCEOF                                       ~3      ~2
          6        BOOL_NOT                                         ~4      ~3
          7      > JMPZ                                                     ~4, ->12
   34     8    >   NEW                          static              $6      
          9        DO_FCALL                                      0          
         10        ASSIGN_STATIC_PROP                                       'instanses'
         11        OP_DATA                                                  $6
   36    12    >   INIT_FCALL                                               'var_dump'
         13        FETCH_STATIC_PROP_R          unknown             ~8      'instanses'
         14        SEND_VAL                                                 ~8
         15        DO_ICALL                                                 
   37    16        FETCH_STATIC_PROP_R          unknown             ~10     'instanses'
         17      > RETURN                                                   ~10
   38    18*     > RETURN                                                   null

End of function getinstance

End of class T.

Class A:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tZI60
function name:  __construct
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   28     0  E > > RETURN                                                   null

End of function __construct

Function getinstance:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 12
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/tZI60
function name:  getInstance
number of ops:  19
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   32     0  E >   INIT_FCALL                                               'var_dump'
          1        FETCH_STATIC_PROP_R          global lock         ~0      'instanses'
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
   33     4        FETCH_STATIC_PROP_R          unknown             ~2      'instanses'
          5        INSTANCEOF                                       ~3      ~2
          6        BOOL_NOT                                         ~4      ~3
          7      > JMPZ                                                     ~4, ->12
   34     8    >   NEW                          static              $6      
          9        DO_FCALL                                      0          
         10        ASSIGN_STATIC_PROP                                       'instanses'
         11        OP_DATA                                                  $6
   36    12    >   INIT_FCALL                                               'var_dump'
         13        FETCH_STATIC_PROP_R          unknown             ~8      'instanses'
         14        SEND_VAL                                                 ~8
         15        DO_ICALL                                                 
   37    16        FETCH_STATIC_PROP_R          unknown             ~10     'instanses'
         17      > RETURN                                                   ~10
   38    18*     > RETURN                                                   null

End of function getinstance

End of class A.

Class B:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tZI60
function name:  __construct
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   28     0  E > > RETURN                                                   null

End of function __construct

Function getinstance:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 12
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/tZI60
function name:  getInstance
number of ops:  19
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   32     0  E >   INIT_FCALL                                               'var_dump'
          1        FETCH_STATIC_PROP_R          global lock         ~0      'instanses'
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
   33     4        FETCH_STATIC_PROP_R          unknown             ~2      'instanses'
          5        INSTANCEOF                                       ~3      ~2
          6        BOOL_NOT                                         ~4      ~3
          7      > JMPZ                                                     ~4, ->12
   34     8    >   NEW                          static              $6      
          9        DO_FCALL                                      0          
         10        ASSIGN_STATIC_PROP                                       'instanses'
         11        OP_DATA                                                  $6
   36    12    >   INIT_FCALL                                               'var_dump'
         13        FETCH_STATIC_PROP_R          unknown             ~8      'instanses'
         14        SEND_VAL                                                 ~8
         15        DO_ICALL                                                 
   37    16        FETCH_STATIC_PROP_R          unknown             ~10     'instanses'
         17      > RETURN                                                   ~10
   38    18*     > RETURN                                                   null

End of function getinstance

End of class B.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
168.56 ms | 1404 KiB | 17 Q