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<title>Informix Functions (PDO_INFORMIX)</title>
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<h1 class="title">Informix Functions (PDO_INFORMIX)</h1>
<div class="partintro">
<div class="section" id="pdo-informix.intro">
<h2 class="title">Introduction</h2>
<p class="para">
PDO_INFORMIX is a driver that implements the <a href="intro.pdo.html" class="link">PHP Data
Objects (PDO)</a> interface to enable access from PHP to Informix databases.
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<h2 class="title">Installation</h2>
<p class="para">
To build the PDO_INFORMIX extension, the Informix Client SDK 2.81 UC1 or
higher must be installed on the same system as PHP. The Informix Client
SDK is available from the <a href="http://www-306.ibm.com/software/data/informix/tools/csdk/" class="link external">» IBM Informix
Support Site</a>.
</p>
<p class="para">
PDO_INFORMIX is a <a href="http://pecl.php.net/" class="link external">» PECL</a> extension, so
follow the instructions in <a href="install.pecl.html" class="xref">Installation of PECL extensions</a> to install the
PDO_INFORMIX extension. Issue the <strong class="command">configure</strong> command
to point to the location of your Informix Client SDK header files and
libraries as follows:
<div class="example-contents screen">
<div class="cdata"><pre>
bash$ ./configure --with-pdo-informix=/path/to/SDK[,shared]
</pre></div>
</div>
The <strong class="command">configure</strong> command defaults to the value of the
<em>INFORMIXDIR</em> environment variable.
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<h2 class="title">Scrollable cursors</h2>
<p class="para">
PDO_INFORMIX supports scrollable cursors; however, they are not enabled
by default. To enable scrollable cursor support, you must either set
<strong class="userinput"><code>ENABLESCROLLABLECURSORS=1</code></strong> in the corresponding ODBC
connection settings in <var class="filename">odbc.ini</var> or pass
the <strong class="userinput"><code>EnableScrollableCursors=1</code></strong> clause in the DSN
connection string.
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<h2>Table of Contents</h2><ul class="chunklist chunklist_reference"><li><a href="ref.pdo-informix.connection.html">PDO_INFORMIX DSN</a> — Connecting to Informix databases</li></ul>
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