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<h2 class="title">Prerequisites</h2>
<p class="para">
The following is list of prerequisites and assumptions needed for writing
a PDO database driver:
</p>
<ol type="1">
<li class="listitem">
<p class="para">
A working target database, examples, demos, etc. working as per vendor
specifications;
</p>
</li>
<li class="listitem">
<p class="para">A working development environment:</p>
<ol type="1">
<li class="listitem">
<p class="para">Linux: standard development tools, gcc, ld, make, autoconf, automake, etc., versions dependent on distribution;</p>
</li>
<li class="listitem">
<p class="para">Other Unix: standard development tools supplied by vendor plus the GNU development tool set; </p>
</li>
<li class="listitem">
<p class="para">Win32: Visual Studio compiler suite;</p>
</li>
</ol>
</li>
<li class="listitem">
<p class="para">A working PHP environment version 5.0.3 or higher with a working PEAR extension version 1.3.5 or higher;</p>
</li>
<li class="listitem">
<p class="para">A working PDO environment (can be installed using 'sudo pecl install PDO'), including the headers which will be needed to access the PDO type definitions and function declarations;</p>
</li>
<li class="listitem">
<p class="para">A good working knowledge of the C programming language;</p>
</li>
<li class="listitem">
<p class="para">A good working knowledge of the way to write a PHP extension;
<em class="emphasis">George Schlossnagle's</em> <em class="emphasis">Advanced PHP Programming</em> (published by
Developer's Library, chapters 21 and 22) is recommended;</p>
</li>
<li class="listitem">
<p class="para">
Finally, a familiarity with the Zend API that forms the heart of PHP, in
particular paying attention to the memory management aspects.
</p>
</li>
</ol>
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