hello world does not work.

[freehandle]

Hello All, 

 

I am a beginner to PHP. I tried the following link "http://www.devarticles.com/c/a/Cplusplus/Developing-Custom-PHP-Extensions-Part-1/2/" to build a extension called php_devarticles.dll. I was successfully able to build it through Visual Studio 6.0

 

The hello_world.c which was a part of dll building looked like this --

 

/* include standard header */

/* you will need to include this in all of your php extension projects*/

#include "php.h"

 

/* All the functions that will be exported (available) must be declared */

ZEND_FUNCTION(hello_world);

PHP_MINFO_FUNCTION(devarticlesmod);

 

/* Just a basic int to be used as a counter*/

int i;

 

/* function list so that the Zend engine will know what’s here */

zend_function_entry devarticlesmod_functions[] =

{

ZEND_FE(hello_world, NULL)

{NULL, NULL, NULL}

};

 

/* module information */

zend_module_entry devarticlesmod_module_entry =

{ STANDARD_MODULE_HEADER,

"DevArticles",

devarticlesmod_functions,

NULL,

NULL,

NULL,

NULL,

PHP_MINFO(devarticlesmod),

NO_VERSION_YET,

STANDARD_MODULE_PROPERTIES };

 

#if COMPILE_DL_DEVARTICLES_MOD

ZEND_GET_MODULE(devarticlesmod)

#endif

 

PHP_MINFO_FUNCTION(devarticlesmod)

{

php_info_print_table_start();

php_info_print_table_row(2, "DevArticles Extension", "All Systems Go");

php_info_print_table_end();

}

 

ZEND_FUNCTION(hello_world)

{

 

for(i=0;i<5;i++)

{

zend_printf("Hello World<br>");

}

}

 

When I build it and add to the ext directory where other dlls are present , and in php.ini I include  extension=php_devarticlesmod.dll and also uncomment (just an example) extension=php_ldap.dll

 

But during the IIS start-up i get the following error.

 

[14-May-2009 20:49:04] PHP Warning:  PHP Startup: Invalid library (maybe not a PHP library) 'php_devarticlesmod.dll'  in Unknown on line 0

 

 

Please can anybody help me to tell wats wrong in this.

 

just add more information:

<?

echo phpinfo();

echo sqrt(9);

?>

 

works

 

but php_devarticles.dll  has a function called hello_world() --

 

 

 

<?

hello_world();

?>

 

Does not work

 

 

 

[cwarn23]

You may want to note that the code you've posted is C code and not C++ code. So make sure the source code file ends in .c and that there are no compilation errors. I too am having the same problem but with the tutorial at http://www.talkphp.com/vbarticles.php?do=article&articleid=49&title=creating-custom-php-extensions

 

So other than the advice I have posted above (the source extensension), I too have a simular error but for me it's in c++ and not c. And my c++ code is as follows:

 

main.cpp

#include "stdafx.h" 

ZEND_FUNCTION(fetch_talkphp_links); 

zend_function_entry talkphp_ext_functions[] = { 
    ZEND_FE(fetch_talkphp_links, NULL) 
    {NULL, NULL, NULL} 
}; 

zend_module_entry talkphp_ext_module_entry = { 
    STANDARD_MODULE_HEADER, 
    "TalkPHP Extension", 
    talkphp_ext_functions, 
    NULL, NULL, NULL, NULL, NULL, 
    "1.0", 
    STANDARD_MODULE_PROPERTIES 
}; 

ZEND_GET_MODULE(talkphp_ext); 

ZEND_FUNCTION(fetch_talkphp_links) 
{ 
     
    bool useHtml = false; 
    char *link = ""; 

    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &useHtml) == FAILURE) 
    { 
        RETURN_STRING("Missing Parameter", true); 
    } 

    if (useHtml == true) 
    { 
        link = "<a href=\"http://www.talkphp.com\">Visit TalkPHP.com!</a>"; 
    } 
    else 
    { 
        link = "http://www.talkphp.com"; 
    } 

    RETURN_STRING(link, true); 
} 

 

stdafx.h

#pragma once 

// Include the Zend Win32 header and the general PHP header 
#include "zend_config.w32.h" 
#include "php.h" 

 

Php Code:

<?
echo echo fetch_talkphp_links(true);
?>

 

Error:

Fatal error: Call to undefined function fetch_talkphp_links()...

 

Just a note, I have rebooted apachie and recompiled this code many times and yet still it will not communicate with php like on post #1. I have even double checked and re-checked the tutorial to make sure I haven't done anything wrong. And I'm using Visual C++ 2008 with Windows XP Pro.

 

So I would really like to know what is the problem with both of our codes as they are so simular.