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<?php function &foo() { static $bar = null; if ($bar === null) { $bar[] = 'init'; } return $bar; } $array = &foo(); $arary[] = 'fot'; // var_dump(foo());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TAmfA
function name:  (null)
number of ops:  11
compiled vars:  !0 = $array, !1 = $arary
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   INIT_FCALL                                               'foo'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN_REF                                               !0, $2
   15     3        ASSIGN_DIM                                               !1
          4        OP_DATA                                                  'fot'
   17     5        INIT_FCALL                                               'var_dump'
          6        INIT_FCALL                                               'foo'
          7        DO_FCALL                                      0  $5      
          8        SEND_VAR                                                 $5
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
Return found
Branch analysis from position: 5
filename:       /in/TAmfA
function name:  foo
number of ops:  7
compiled vars:  !0 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   BIND_STATIC                                              !0
    6     1        TYPE_CHECK                                    2          !0
          2      > JMPZ                                                     ~1, ->5
    7     3    >   ASSIGN_DIM                                               !0
          4        OP_DATA                                                  'init'
   10     5    > > RETURN_BY_REF                                            !0
   11     6*     > RETURN_BY_REF                                            null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


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