[Swig-user] PHP wrappers from C++ -- type error

[Avneet K. <kau...@gm...>]

Hello, I am new to SWIG. I want to create PHP wrappers from C++  class Book.
Please guide me to solve this error. I have explained every step that I did.
It's urgent to deliver this my college project.

Please help to get me out. :)

STEP 1: Source file
We have source .cc file in which we have defined the following
function in Book class.

//book.cc file
bool Book::page(string fname, Pageid &pid) { }

STEP 2: SWIG Interface
To create a PHP wrapper, we defined following swig interface:

%{
#include "Book.cc"
%}
%module Book
%include "typemaps.i"
%include "std_string.i"

class Pageid{ };
class Book{
public:
    bool page(string filename, Pageid &pid);
};

STEP 3: SWIG Generated .cpp and .php files
//Book_wrap.cpp

ZEND_NAMED_FUNCTION(_wrap_Book_page) {
  Book *arg1 = (Book *) 0 ;
  string arg2 ;
  Pageid *arg3 = 0 ;
  string *tmp2 ;
  zval **args[3];
  bool result;

  SWIG_ResetError();
  if(ZEND_NUM_ARGS() != 3 || zend_get_parameters_array_ex(3, args) != SUCCESS) {
    WRONG_PARAM_COUNT;  }
  {
    if(SWIG_ConvertPtr(*args[0], (void **) &arg1, SWIGTYPE_p_Book, 0) < 0) {
      SWIG_PHP_Error(E_ERROR, "Type error in argument 1 of Book_page.
Expected SWIGTYPE_p_Book");
    }
  }
  if(!arg1) SWIG_PHP_Error(E_ERROR, "this pointer is NULL");
  {
    if(SWIG_ConvertPtr(*args[1], (void **) &tmp2, SWIGTYPE_p_string,
0) < 0 || tmp2 == NULL) {
      SWIG_PHP_Error(E_ERROR, "Type error in argument 2 of Book_page.
Expected SWIGTYPE_p_string");
    }
    arg2 = *tmp2;
  }
  {
    if(SWIG_ConvertPtr(*args[2], (void **) &arg3, SWIGTYPE_p_CCard, 0)
< 0 || arg3 == NULL) {
      SWIG_PHP_Error(E_ERROR, "Type error in argument 3 of Book_page.
Expected SWIGTYPE_p_Pageid");
    }
  }
  result = (bool)(arg1)->page(arg2,*arg3);
  {
    ZVAL_BOOL(return_value,(result)?1:0);
  }
  return;
fail:
  zend_error(SWIG_ErrorCode(),"%s",SWIG_ErrorMsg());
}

//// Book.php
class Book {
public $_cPtr=null;
protected $_pData=array();

function __set($var,$value) {}
function __isset($var) { }
function __get($var) { }
function page($filename,$pid) {
return Book_page($this->_cPtr,$filename,$pid); }
function __construct($res=null) { }
}

STEP 4: Testing
///// Test file: test.php
<?php
include_once "Book.php";

$pid = new Pageid();
$filename = "52c576d32647b.jpg";
$bk = new Book();
$cr->processCard($filename, $pid);
?>

ERROR:
// while running, error message:
PHP Fatal error:  Type error in argument 2 of Book_page.
Expected SWIGTYPE_p_string in /home/avneet/Book.php on line 120


There is something wrong with SWIG Interface file. Please let me know
where I am wrong.

Eagerly waiting for reply !


-- 
Er. Avneet Kaur
Blog: www.avneetkhasla.wordpress.com

"Coming together is a beginning; keeping together is progress; working
together is success."