Source of: /manual/en/migration51.php
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<div>
<h1>Migrating from PHP 5.0.x to PHP 5.1.x</h1>
<h2>Table of Contents</h2><ul class="chunklist chunklist_appendix"><li><a href="migration51.changes.php">Key PHP 5.1.x features</a></li><li><a href="migration51.references.php">Changes in reference handling</a></li><li><a href="migration51.reading.php">Reading []</a></li><li><a href="migration51.integer-parameters.php">Integer values in function parameters</a></li><li><a href="migration51.oop.php">Class and object changes</a></li><li><a href="migration51.extensions.php">Extensions</a></li><li><a href="migration51.datetime.php">Date/time support</a></li><li><a href="migration51.databases.php">Changes in database support</a></li><li><a href="migration51.errorcheck.php">Checking for E_STRICT</a></li></ul>
<p class="para">
See also the migration guides for PHP versions
<a href="migration5.php" class="link">5.0.x</a>,
<a href="migration52.php" class="link">5.2.x</a> and
<a href="migration53.php" class="link">5.3.x</a>.
</p>
</div>
<?php manual_footer(); ?>