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<?php class Foo{ public static function Bar($num){ $num*=50; } } $num = 3; call_user_func_array('Foo::Bar', array(&$num)); echo $num;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/H6OMo
function name:  (null)
number of ops:  8
compiled vars:  !0 = $num
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   ASSIGN                                                   !0, 3
   10     1        INIT_USER_CALL                                0          'call_user_func_array', 'Foo%3A%3ABar'
          2        INIT_ARRAY                                       ~2      !0
          3        SEND_ARRAY                                               ~2
          4        CHECK_UNDEF_ARGS                                         
          5        DO_FCALL                                      0          
   11     6        ECHO                                                     !0
          7      > RETURN                                                   1

Class Foo:
Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/H6OMo
function name:  Bar
number of ops:  3
compiled vars:  !0 = $num
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
          1        ASSIGN_OP                                     3          !0, 50
          2      > RETURN                                                   null

End of function bar

End of class Foo.

Generated using Vulcan Logic Dumper, using php 8.0.0


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