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<?php function foo(&$var) { $var++; } function &bar() // Note the missing & { $a = 5; return $a; } foo(bar()); // Produces fatal error since PHP 5.0.5 foo($a = 5); // Expression, not variable
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B0OqR
function name:  (null)
number of ops:  10
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   INIT_FCALL                                               'foo'
          1        INIT_FCALL                                               'bar'
          2        DO_FCALL                                      0  $1      
          3        SEND_VAR_NO_REF                               0          $1
          4        DO_FCALL                                      0          
   13     5        INIT_FCALL                                               'foo'
          6        ASSIGN                                           ~3      !0, 5
          7        SEND_VAL_EX                                              ~3
          8        DO_FCALL                                      0          
          9      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B0OqR
function name:  foo
number of ops:  3
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      > RETURN                                                   null

End of function foo

Function bar:
Finding entry points
Branch analysis from position: 0
Return found
filename:       /in/B0OqR
function name:  bar
number of ops:  3
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                   !0, 5
    9     1      > RETURN_BY_REF                                            !0
   10     2*     > RETURN_BY_REF                                            null

End of function bar

Generated using Vulcan Logic Dumper, using php 8.0.0


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