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<?php function foo(&$var) { $var++; var_dump($var); } $a=5; var_dump($a); foo($a); var_dump($a); // $a is 6 here ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HbKlK
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                   !0, 5
    9     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
   10     4        INIT_FCALL                                               'foo'
          5        SEND_REF                                                 !0
          6        DO_FCALL                                      0          
   11     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                                 
   13    10      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HbKlK
function name:  foo
number of ops:  6
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    4     1        PRE_INC                                                  !0
    5     2        INIT_FCALL                                               'var_dump'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                                 
    6     5      > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


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