Executing Microsoft SQL Server Stored Procedure from PHP on Linux - Conclusion
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In this article, we discuss how to make Apache, PHP and FreeTDS work together, executing Microsoft SQL Server stored procedures from Red Hat Linux 9.0. Due to a bug in the FreeTDS original source code, mssql_bind(), mssql_execute(), and mssql_init() do not work with the default installation. We give out a workaround to modify the PHP source code so that these functions work successfully.
This is also tested for PHP 4.3.2 with Apache 2.0.46, and FreeTDS 0.61.2 on Red Hat 9.0. I would suggest you to try this on Red Hat 8.0 and 7.3. The following is the testing environment I used for this article:
The Machines for Red Hat 9.0 Are:
Dell Dimension 4500 (2.4 GHz P4, 1 GB RAM) with Apache 2.0.47 + FreeTDS 0.61.2 + PHP 4.3.3 installed
IBM ThinkPad T30 Laptop (1.8 GHz P4, 512 MB RAM), with Apache 2.0.46 + FreeTDS 0.61.2 + PHP 4.3.2 installed
The Machine for Windows Apache Is:
Same laptop as above (dual boot) with Windows XP + Apache 2.0.46 (precompiled binary) + PHP 4.3.2 (precompiled binary)
The Machine for MS SQL Server 2000:
Compatible PIII 1 GHz, 512 MB RAM with Windows 2000 Server installed.
It is really worthy to be mention that you cannot compile Sybase or Sybase_CT module with Microsoft SQL Server Module together without modification. If you decide to use Sybase or Sybase_CT module, mssql_xxx functions are still functional except these 4 functions: mssql_bind(), mssql_execute(), mssql_init() and mssql_free_statment(), because mssql_xxx functions are treated as aliases of corresponding Sybase_xxx.
A workaround to keep these 4 functions is to remove the mssql alias definition in Sybase and Sybase_CT module from the function_entry part in php_sybase_ct.c or php_sybase_db.c files. Recompile PHP with sybase_ct and mssql options.
I’ve provided a real sample here (I have Sybase Adaptive Server Enterprise 12.5 developer edition and Oracle Enterprise Server 8.1.7 installed on Red Hat 9.0):
./configure --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --target=i686-redhat-linux-gnu --prefix=/usr/local/php2 --with-config-file-path=/usr/local/php2 --enable-force-cgi-redirect --disable-debug --enable-pic --disable-rpath --enable-inline-optimization --with-db4 --with-dom=/usr --with-exec-dir=/usr/bin --with-freetype-dir=/usr --with-png-dir=/usr --with-gd --enable-gd-native-ttf --with-ttf --with-gdbm --with-gettext --with-ncurses --with-gmp --with-iconv --with-jpeg-dir=/usr --with-openssl --with-png --with-ming --with-regex=system --with-xml --with-expat-dir=/usr --with-zlib --with-layout=GNU --enable-bcmath --enable-exif --enable-ftp --enable-magic-quotes --enable-safe-mode --enable-sockets --enable-sysvsem --enable-sysvshm --enable-discard-path --enable-track-vars --enable-trans-sid --enable-wddx --with-oci8=/home/oracle/product/8.1.7 --enable-sigchild --with-mssql=/usr/local/FreeTDS --with-sybase-ct=/opt/sybase-12.5/OCS-12_5 --with-pcre-regex --with-mysql=/usr/local/mysql --with-pgsql=/usr/local/pgsql --with-imap=shared --with-imap-ssl --with-kerberos=/usr/kerberos --enable-memory-limit --enable-bcmath --enable-shmop --enable-versioning --enable-calendar --enable-dbx --enable-dio --enable-mcal --disable-cli --with-apxs2filter=/usr/local/Apache2/bin/apxs
Repeat the steps in this article to install PHP, and remember to restart Apache. You will see sybase_ct and mssql modules co-exist in PHP from the test.php page on Linux.
On Windows, after removing the mssql alias definition in Sybase_CT module, use Visual C++ 6.0 to recompile and make a new php_sybase_ct.dll (you must at least have the Sybase Open Client installed on your Windows machine to access the header files and library files). Then copy php_sybase_ct.dll to your php extensions directory, uncomment the following 2 lines in your php.ini file:
extension=php_sybase_ct.dll
extension=php_mssql.dll
Restart and you will see sybase_ct and mssql modules co-existing in PHP from test.php on Windows.
In my next article, Executing Sybase SQL Server Stored Procedure from PHP, I will discuss how to expand PHP Sybase DB and Sybase CT functions by yourself, adding the exact same functions like: sybase_bind(), sybase_execute(), sybase_init() and sybase_free_statment() into the PHP Sybase and Sybase_CT modules.
Reference Sites, Books and Articles:
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