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My Knowledge base is; I can get around in php, I have never worked with C, C++, C# or any compilers. I Upgraded from XAMPP 1.7.3, which used php 5.3, to 1.8.1 which includes: Apache 2.4.3 MySQL 5.5.27 PHP 5.4.7 It is being installed on Windows 7 Pro, Windows XP Pro and Windows Server 2008 r2. But I am trying to get it to working on Windows 7 currently. I upgraded because I needed a newer version of Apache and MySQL for security reasons. I do not have the option to downgrade. I use the php_printer.dll for the ability to print raw data to the printer: printer_set_option($handle, PRINTER_MODE, "RAW"); My Code worked fine in PHP 5.3 but broke in PHP 5.4. After receiving the error: " Fatal error: Call to undefined function printer_open() in ~". I checked the php_error_log and received the following information. PHP Warning: PHP Startup: printer: Unable to initialize module Module compiled with module API=20090626 PHP compiled with module API=20100525 These options need to match I've looked for hours trying to find a pre-compiled php_printer.dll for PHP 5.4.7 to no avail. I have concluded that I will have to compile it from source files in the PECL. pecl.php.net/package/printer Having never had to do this before I did what any internet user should do. I googled it and found some information here: https://wiki.php.net/internals/windows/stepbystepbuild It took me all day but the PHP build worked. But then tried to create the php_printer.dll following the dbase example. First I tried : svn co http://svn.php.net/repository/pecl/printer/trunk pecl/printer But it said: 'svn' is not recognized as an internal or external command, operable program or batch file. So I just downloaded the files myself from: svn.php.net/repository/pecl/printer/trunk/ and put them in: C:\php-sdk\php54dev\vc9\x86\php5.4-201303311430\ext\printer The files: config.w32 CREDITS.txt php_printer.h printer.c printer.dsp printer.php Tried it both With printer.php and with out. I made sure to download the libraries both from: windows.php.net/downloads/php-sdk/deps/vc9/x86/ Also just the deps file: deps-5.4-vc9-x86.7z I tried the deps file alone and then added the other, however; every time I received the following when I tried to nmake: c:\php-sdk\php54dev\vc9\x86\php5.4-201303311430>nmake Microsoft (R) Program Maintenance Utility Version 9.00.30729.01 Copyright (C) Microsoft Corporation. All rights reserved. printer.c ext\printer\printer.c(266) : error C2065: 'pval' : undeclared identifier ext\printer\printer.c(266) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(266) : error C2100: illegal indirection ext\printer\printer.c(266) : warning C4552: '*' : operator has no effect; expect ed operator with side-effect ext\printer\printer.c(267) : error C2275: 'printer' : illegal use of this type a s an expression c:\php-sdk\php54dev\vc9\x86\php5.4-201303311430\ext\printer\php_printer. h(78) : see declaration of 'printer' ext\printer\printer.c(267) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(269) : error C2143: syntax error : missing ';' before 'typ e' ext\printer\printer.c(271) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(271) : warning C4047: '=' : 'int' differs in levels of ind irection from 'printer *' ext\printer\printer.c(272) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(272) : error C2223: left of '->dmModifiedFields' must poin t to struct/union ext\printer\printer.c(274) : error C2065: 'argc' : undeclared identifier ext\printer\printer.c(274) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : error C2224: left of '.type' must have struct/union type ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : warning C4047: 'function' : 'zval *' differs in lev els of indirection from 'int' ext\printer\printer.c(275) : warning C4024: 'zval_isref_p' : different types for formal and actual parameter 1 ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : warning C4047: 'function' : 'zval *' differs in lev els of indirection from 'int' ext\printer\printer.c(275) : warning C4024: 'zval_refcount_p' : different types for formal and actual parameter 1 ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : warning C4047: 'function' : 'zval *' differs in lev els of indirection from 'int' ext\printer\printer.c(275) : warning C4024: 'zval_delref_p' : different types fo r formal and actual parameter 1 ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : error C2223: left of '->value' must point to struct /union ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : error C2224: left of '.type' must have struct/union type ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : warning C4047: '=' : 'int' differs in levels of ind irection from 'zval *' ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : error C2223: left of '->type' must point to struct/ union ext\printer\printer.c(275) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(275) : error C2100: illegal indirection ext\printer\printer.c(275) : warning C4047: 'function' : 'zval *' differs in lev els of indirection from 'int' ext\printer\printer.c(275) : warning C4024: '_convert_to_string' : different typ es for formal and actual parameter 1 ext\printer\printer.c(276) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(276) : error C2223: left of '->name' must point to struct/ union ext\printer\printer.c(276) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(276) : error C2100: illegal indirection ext\printer\printer.c(276) : error C2100: illegal indirection ext\printer\printer.c(276) : error C2224: left of '.value' must have struct/unio n type ext\printer\printer.c(278) : error C2065: 'argc' : undeclared identifier ext\printer\printer.c(279) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(279) : error C2223: left of '->name' must point to struct/ union ext\printer\printer.c(285) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(285) : error C2223: left of '->name' must point to struct/ union ext\printer\printer.c(285) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(285) : error C2223: left of '->handle' must point to struc t/union ext\printer\printer.c(285) : error C2198: 'OpenPrinterA' : too few arguments for call ext\printer\printer.c(286) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(286) : error C2223: left of '->pi2' must point to struct/u nion ext\printer\printer.c(287) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(287) : error C2223: left of '->pi2' must point to struct/u nion ext\printer\printer.c(287) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(287) : error C2223: left of '->name' must point to struct/ union ext\printer\printer.c(287) : error C2198: 'DocumentPropertiesA' : too few argume nts for call ext\printer\printer.c(288) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(288) : error C2223: left of '->handle' must point to struc t/union ext\printer\printer.c(288) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(288) : error C2223: left of '->name' must point to struct/ union ext\printer\printer.c(288) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(288) : error C2223: left of '->pi2' must point to struct/u nion ext\printer\printer.c(288) : warning C4047: 'function' : 'LPSTR' differs in leve ls of indirection from 'int' ext\printer\printer.c(288) : warning C4024: 'DocumentPropertiesA' : different ty pes for formal and actual parameter 3 ext\printer\printer.c(288) : error C2198: 'DocumentPropertiesA' : too few argume nts for call ext\printer\printer.c(289) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(289) : error C2223: left of '->info' must point to struct/ union ext\printer\printer.c(290) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(290) : error C2223: left of '->info' must point to struct/ union ext\printer\printer.c(291) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(291) : error C2223: left of '->info' must point to struct/ union ext\printer\printer.c(292) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(292) : error C2223: left of '->info' must point to struct/ union ext\printer\printer.c(293) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(293) : error C2223: left of '->info' must point to struct/ union ext\printer\printer.c(293) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(293) : error C2223: left of '->info' must point to struct/ union ext\printer\printer.c(294) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(294) : error C2223: left of '->dc' must point to struct/un ion ext\printer\printer.c(294) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(294) : error C2223: left of '->name' must point to struct/ union ext\printer\printer.c(294) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(294) : error C2223: left of '->pi2' must point to struct/u nion ext\printer\printer.c(294) : error C2198: 'CreateDCA' : too few arguments for ca ll ext\printer\printer.c(295) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(295) : warning C4022: 'zend_register_resource' : pointer m ismatch for actual parameter 2 ext\printer\printer.c(299) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(299) : error C2223: left of '->name' must point to struct/ union ext\printer\printer.c(310) : error C2065: 'pval' : undeclared identifier ext\printer\printer.c(310) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(310) : error C2100: illegal indirection ext\printer\printer.c(310) : warning C4552: '*' : operator has no effect; expect ed operator with side-effect ext\printer\printer.c(311) : error C2275: 'printer' : illegal use of this type a s an expression c:\php-sdk\php54dev\vc9\x86\php5.4-201303311430\ext\printer\php_printer. h(78) : see declaration of 'printer' ext\printer\printer.c(311) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(313) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(317) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(317) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(317) : warning C4047: 'function' : 'zval **' differs in le vels of indirection from 'int' ext\printer\printer.c(317) : warning C4024: 'zend_fetch_resource' : different ty pes for formal and actual parameter 1 ext\printer\printer.c(317) : warning C4047: '=' : 'int' differs in levels of ind irection from 'printer *' ext\printer\printer.c(317) : error C2065: 'resource' : undeclared identifier ext\printer\printer.c(319) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(319) : error C2100: illegal indirection ext\printer\printer.c(319) : error C2100: illegal indirection ext\printer\printer.c(319) : error C2224: left of '.value' must have struct/unio n type ext\printer\printer.c(319) : warning C4047: 'function' : 'int' differs in levels of indirection from 'void ***' ext\printer\printer.c(319) : warning C4024: '_zend_list_delete' : different type s for formal and actual parameter 1 ext\printer\printer.c(319) : error C2198: '_zend_list_delete' : too few argument s for call ext\printer\printer.c(328) : error C2065: 'pval' : undeclared identifier ext\printer\printer.c(328) : error C2065: 'arg1' : undeclared identifier ext\printer\printer.c(328) : fatal error C1003: error count exceeds 100; stoppin g compilation NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 9.0\ VC\Bin\cl.exe"' : return code '0x2' Stop. If some one is set up to compile this DLL for 5.4.7 I would greatly appreciate it.

Hi, I've been asked to update some existing PHP to use a DELPHI produced DLL in place of it's existing Data access code. What I've tried so far: Using COM, but I keep getting errors about an Unknown Interface that I have failed to get to the bottom of. Using Delphi4PHP to create a DLL PHP extention, but when using this it caused Apache to crash altogether. Has anyone successfully achieved communication with a Delphi produced DLL from within PHP? Many thanks Andy