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<h1 class="title">Introduction</h1>
<p class="para">
In addition to normal ODBC support, the Unified ODBC functions in
PHP allow you to access several databases that have borrowed the
semantics of the ODBC API to implement their own API. Instead of
maintaining multiple database drivers that were all nearly
identical, these drivers have been unified into a single set of
ODBC functions.
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<p class="para">
The following databases are supported by the Unified ODBC
functions: <a href="http://www.softwareag.com/corporate/products/adabas_2010/" class="link external">» Adabas D</a>,
<a href="http://www-306.ibm.com/software/data/db2/" class="link external">» IBM DB2</a>,
<a href="http://www.iodbc.org/" class="link external">» iODBC</a>,
<a href="http://www.solidtech.com/" class="link external">» Solid</a>, and
<a href="http://www.sybase.com/" class="link external">» Sybase SQL Anywhere</a>.
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
With the exception of iODBC, there is no ODBC involved when
connecting to the above databases. The functions that you
use to speak natively to them just happen to share the same
names and syntax as the ODBC functions. However, building PHP
with iODBC support enables you to use any ODBC-compliant
drivers with your PHP applications. More information on iODBC,
is available at <a href="http://www.iodbc.org/" class="link external">» www.iodbc.org</a>
with the alternative unixODBC available at
<a href="http://www.unixodbc.org/" class="link external">» www.unixodbc.org</a>.
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