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<title>Constants for PDO_4D</title>
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<h1 class="refname">Constants for PDO_4D</h1>
<p class="verinfo">(No version information available, might only be in SVN)</p><p class="refpurpose"><span class="refname">Constants for PDO_4D</span> — <span class="dc-title">Constants for PDO_4D</span></p>
</div>
<div class="refsect1 description" id="refsect1-pdo-4d.constants-description">
<h3 class="title">Predefined Constants</h3>
<p class="simpara">The constants below are defined by
this driver, and will only be available when the extension has been either
compiled into PHP or dynamically loaded at runtime. In addition, these
driver-specific constants should only be used if you are using this driver.
Using driver-specific attributes with another driver may result in
unexpected behaviour. <span class="function"><a href="pdo.getattribute.html" class="function">PDO::getAttribute()</a></span> may be used to
obtain the <strong><code>PDO_ATTR_DRIVER_NAME</code></strong> attribute to check the
driver, if your code can run against multiple drivers.</p>
<dl>
<dt id="pdo.constants.fourd-attr-charset">
<span class="term">
<strong><code>PDO::FOURD_ATTR_CHARSET</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</span>
<dd>
<p class="para">
Change the charset in which 4D returns data.
(Default is UTF-8).
</p>
</dd>
</dt>
<dt id="pdo.constants.fourd-attr-preferred-image-types">
<span class="term">
<strong><code>PDO::FOURD_ATTR_PREFERRED_IMAGE_TYPES</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</span>
<dd>
<p class="para">
The requested format of the image, when selecting a row
with a column type PICTURE. It may be any type that 4D supports.
</p>
</dd>
</dt>
</dl>
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