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<?php class A { private static $x = array(); public static function foo() { if (empty($array)) { echo "initialized\n\n"; $array = array('ciao', 'come', 'va'); } print_r(self::$x); } } A::foo(); A::foo(); A::foo(); A::foo(); A::foo(); A::foo(); A::foo(); A::foo();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Nrb5m
function name:  (null)
number of ops:  17
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   18     0  E >   INIT_STATIC_METHOD_CALL                                  'A', 'foo'
          1        DO_FCALL                                      0          
   19     2        INIT_STATIC_METHOD_CALL                                  'A', 'foo'
          3        DO_FCALL                                      0          
   20     4        INIT_STATIC_METHOD_CALL                                  'A', 'foo'
          5        DO_FCALL                                      0          
   21     6        INIT_STATIC_METHOD_CALL                                  'A', 'foo'
          7        DO_FCALL                                      0          
   22     8        INIT_STATIC_METHOD_CALL                                  'A', 'foo'
          9        DO_FCALL                                      0          
   23    10        INIT_STATIC_METHOD_CALL                                  'A', 'foo'
         11        DO_FCALL                                      0          
   24    12        INIT_STATIC_METHOD_CALL                                  'A', 'foo'
         13        DO_FCALL                                      0          
   25    14        INIT_STATIC_METHOD_CALL                                  'A', 'foo'
         15        DO_FCALL                                      0          
         16      > RETURN                                                   1

Class A:
Function foo:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 2, Position 2 = 4
Branch analysis from position: 2
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
filename:       /in/Nrb5m
function name:  foo
number of ops:  9
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   ISSET_ISEMPTY_CV                                         !0
          1      > JMPZ                                                     ~1, ->4
    9     2    >   ECHO                                                     'initialized%0A%0A'
   11     3        ASSIGN                                                   !0, <array>
   14     4    >   INIT_FCALL                                               'print_r'
          5        FETCH_STATIC_PROP_R          global lock         ~3      'x'
          6        SEND_VAL                                                 ~3
          7        DO_ICALL                                                 
   15     8      > RETURN                                                   null

End of function foo

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


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