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+<li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li>
+</ul>
+</li>
+</ul>
+<ul class="current">
+<li class="toctree-l1 current"><a class="reference internal" href="index.html">Database Reference</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="examples.html">Quick Start: Usage Examples</a></li>
+<li class="toctree-l2"><a class="reference internal" href="configuration.html">Database Configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="connecting.html">Connecting to a Database</a></li>
+<li class="toctree-l2"><a class="reference internal" href="queries.html">Running Queries</a></li>
+<li class="toctree-l2"><a class="reference internal" href="results.html">Generating Query Results</a></li>
+<li class="toctree-l2"><a class="reference internal" href="helpers.html">Query Helper Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="query_builder.html">Query Builder Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="transactions.html">Transactions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="metadata.html">Getting MetaData</a></li>
+<li class="toctree-l2"><a class="reference internal" href="call_function.html">Custom Function Calls</a></li>
+<li class="toctree-l2"><a class="reference internal" href="caching.html">Query Caching</a></li>
+<li class="toctree-l2"><a class="reference internal" href="forge.html">Database Manipulation with Database Forge</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">Database Utilities Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="db_driver_reference.html">Database Driver Reference</a></li>
+</ul>
+</li>
+</ul>
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="forge.html">Database Manipulation with Database Forge</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">Database Utilities Class</a></li>
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+            
+  <div class="section" id="database-utility-class">
+<h1>Database Utility Class<a class="headerlink" href="#database-utility-class" title="Permalink to this headline">¶</a></h1>
+<p>The Database Utility Class contains methods that help you manage your
+database.</p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#initializing-the-utility-class" id="id1">Initializing the Utility Class</a></li>
+<li><a class="reference internal" href="#using-the-database-utilities" id="id2">Using the Database Utilities</a><ul>
+<li><a class="reference internal" href="#retrieve-list-of-database-names" id="id3">Retrieve list of database names</a></li>
+<li><a class="reference internal" href="#determine-if-a-database-exists" id="id4">Determine If a Database Exists</a></li>
+<li><a class="reference internal" href="#optimize-a-table" id="id5">Optimize a Table</a></li>
+<li><a class="reference internal" href="#repair-a-table" id="id6">Repair a Table</a></li>
+<li><a class="reference internal" href="#optimize-a-database" id="id7">Optimize a Database</a></li>
+<li><a class="reference internal" href="#export-a-query-result-as-a-csv-file" id="id8">Export a Query Result as a CSV File</a></li>
+<li><a class="reference internal" href="#export-a-query-result-as-an-xml-document" id="id9">Export a Query Result as an XML Document</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#backup-your-database" id="id10">Backup Your Database</a><ul>
+<li><a class="reference internal" href="#database-backup-notes" id="id11">Database Backup Notes</a></li>
+<li><a class="reference internal" href="#usage-example" id="id12">Usage Example</a></li>
+<li><a class="reference internal" href="#setting-backup-preferences" id="id13">Setting Backup Preferences</a></li>
+<li><a class="reference internal" href="#description-of-backup-preferences" id="id14">Description of Backup Preferences</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#class-reference" id="id15">Class Reference</a></li>
+</ul>
+</div>
+<div class="section" id="initializing-the-utility-class">
+<h2><a class="toc-backref" href="#id1">Initializing the Utility Class</a><a class="headerlink" href="#initializing-the-utility-class" title="Permalink to this headline">¶</a></h2>
+<div class="admonition important">
+<p class="first admonition-title">Important</p>
+<p class="last">In order to initialize the Utility class, your database
+driver must already be running, since the utilities class relies on it.</p>
+</div>
+<p>Load the Utility Class as follows:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="p">();</span>
+</pre></div>
+</div>
+<p>You can also pass another database object to the DB Utility loader, in case
+the database you want to manage isn’t the default one:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">myutil</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">other_db</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>In the above example, we’re passing a custom database object as the first
+parameter and then tell it to return the dbutil object, instead of
+assigning it directly to <code class="docutils literal"><span class="pre">$this-&gt;dbutil</span></code>.</p>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">Both of the parameters can be used individually, just pass an empty
+value as the first one if you wish to skip it.</p>
+</div>
+<p>Once initialized you will access the methods using the <code class="docutils literal"><span class="pre">$this-&gt;dbutil</span></code>
+object:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">some_method</span><span class="p">();</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="using-the-database-utilities">
+<h2><a class="toc-backref" href="#id2">Using the Database Utilities</a><a class="headerlink" href="#using-the-database-utilities" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="retrieve-list-of-database-names">
+<h3><a class="toc-backref" href="#id3">Retrieve list of database names</a><a class="headerlink" href="#retrieve-list-of-database-names" title="Permalink to this headline">¶</a></h3>
+<p>Returns an array of database names:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$dbs</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">list_databases</span><span class="p">();</span>
+
+<span class="k">foreach</span> <span class="p">(</span><span class="nv">$dbs</span> <span class="k">as</span> <span class="nv">$db</span><span class="p">)</span>
+<span class="p">{</span>
+        <span class="k">echo</span> <span class="nv">$db</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="determine-if-a-database-exists">
+<h3><a class="toc-backref" href="#id4">Determine If a Database Exists</a><a class="headerlink" href="#determine-if-a-database-exists" title="Permalink to this headline">¶</a></h3>
+<p>Sometimes it’s helpful to know whether a particular database exists.
+Returns a boolean TRUE/FALSE. Usage example:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">database_exists</span><span class="p">(</span><span class="s1">&#39;database_name&#39;</span><span class="p">))</span>
+<span class="p">{</span>
+        <span class="c1">// some code...</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">Replace <em>database_name</em> with the name of the database you are
+looking for. This method is case sensitive.</p>
+</div>
+</div>
+<div class="section" id="optimize-a-table">
+<h3><a class="toc-backref" href="#id5">Optimize a Table</a><a class="headerlink" href="#optimize-a-table" title="Permalink to this headline">¶</a></h3>
+<p>Permits you to optimize a table using the table name specified in the
+first parameter. Returns TRUE/FALSE based on success or failure:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">optimize_table</span><span class="p">(</span><span class="s1">&#39;table_name&#39;</span><span class="p">))</span>
+<span class="p">{</span>
+        <span class="k">echo</span> <span class="s1">&#39;Success!&#39;</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">Not all database platforms support table optimization. It is
+mostly for use with MySQL.</p>
+</div>
+</div>
+<div class="section" id="repair-a-table">
+<h3><a class="toc-backref" href="#id6">Repair a Table</a><a class="headerlink" href="#repair-a-table" title="Permalink to this headline">¶</a></h3>
+<p>Permits you to repair a table using the table name specified in the
+first parameter. Returns TRUE/FALSE based on success or failure:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">repair_table</span><span class="p">(</span><span class="s1">&#39;table_name&#39;</span><span class="p">))</span>
+<span class="p">{</span>
+        <span class="k">echo</span> <span class="s1">&#39;Success!&#39;</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">Not all database platforms support table repairs.</p>
+</div>
+</div>
+<div class="section" id="optimize-a-database">
+<h3><a class="toc-backref" href="#id7">Optimize a Database</a><a class="headerlink" href="#optimize-a-database" title="Permalink to this headline">¶</a></h3>
+<p>Permits you to optimize the database your DB class is currently
+connected to. Returns an array containing the DB status messages or
+FALSE on failure.</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$result</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">optimize_database</span><span class="p">();</span>
+
+<span class="k">if</span> <span class="p">(</span><span class="nv">$result</span> <span class="o">!==</span> <span class="k">FALSE</span><span class="p">)</span>
+<span class="p">{</span>
+        <span class="nb">print_r</span><span class="p">(</span><span class="nv">$result</span><span class="p">);</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">Not all database platforms support database optimization. It
+it is mostly for use with MySQL.</p>
+</div>
+</div>
+<div class="section" id="export-a-query-result-as-a-csv-file">
+<h3><a class="toc-backref" href="#id8">Export a Query Result as a CSV File</a><a class="headerlink" href="#export-a-query-result-as-a-csv-file" title="Permalink to this headline">¶</a></h3>
+<p>Permits you to generate a CSV file from a query result. The first
+parameter of the method must contain the result object from your
+query. Example:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="p">();</span>
+
+<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">db</span><span class="o">-&gt;</span><span class="na">query</span><span class="p">(</span><span class="s2">&quot;SELECT * FROM mytable&quot;</span><span class="p">);</span>
+
+<span class="k">echo</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">csv_from_result</span><span class="p">(</span><span class="nv">$query</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>The second, third, and fourth parameters allow you to set the delimiter
+newline, and enclosure characters respectively. By default commas are
+used as the delimiter, “n” is used as a new line, and a double-quote
+is used as the enclosure. Example:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$delimiter</span> <span class="o">=</span> <span class="s2">&quot;,&quot;</span><span class="p">;</span>
+<span class="nv">$newline</span> <span class="o">=</span> <span class="s2">&quot;</span><span class="se">\r\n</span><span class="s2">&quot;</span><span class="p">;</span>
+<span class="nv">$enclosure</span> <span class="o">=</span> <span class="s1">&#39;&quot;&#39;</span><span class="p">;</span>
+
+<span class="k">echo</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">csv_from_result</span><span class="p">(</span><span class="nv">$query</span><span class="p">,</span> <span class="nv">$delimiter</span><span class="p">,</span> <span class="nv">$newline</span><span class="p">,</span> <span class="nv">$enclosure</span><span class="p">);</span>
+</pre></div>
+</div>
+<div class="admonition important">
+<p class="first admonition-title">Important</p>
+<p class="last">This method will NOT write the CSV file for you. It
+simply creates the CSV layout. If you need to write the file
+use the <a class="reference internal" href="../helpers/file_helper.html"><span class="doc">File Helper</span></a>.</p>
+</div>
+</div>
+<div class="section" id="export-a-query-result-as-an-xml-document">
+<h3><a class="toc-backref" href="#id9">Export a Query Result as an XML Document</a><a class="headerlink" href="#export-a-query-result-as-an-xml-document" title="Permalink to this headline">¶</a></h3>
+<p>Permits you to generate an XML file from a query result. The first
+parameter expects a query result object, the second may contain an
+optional array of config parameters. Example:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="p">();</span>
+
+<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">db</span><span class="o">-&gt;</span><span class="na">query</span><span class="p">(</span><span class="s2">&quot;SELECT * FROM mytable&quot;</span><span class="p">);</span>
+
+<span class="nv">$config</span> <span class="o">=</span> <span class="k">array</span> <span class="p">(</span>
+        <span class="s1">&#39;root&#39;</span>          <span class="o">=&gt;</span> <span class="s1">&#39;root&#39;</span><span class="p">,</span>
+        <span class="s1">&#39;element&#39;</span>       <span class="o">=&gt;</span> <span class="s1">&#39;element&#39;</span><span class="p">,</span>
+        <span class="s1">&#39;newline&#39;</span>       <span class="o">=&gt;</span> <span class="s2">&quot;</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">,</span>
+        <span class="s1">&#39;tab&#39;</span>           <span class="o">=&gt;</span> <span class="s2">&quot;</span><span class="se">\t</span><span class="s2">&quot;</span>
+<span class="p">);</span>
+
+<span class="k">echo</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">xml_from_result</span><span class="p">(</span><span class="nv">$query</span><span class="p">,</span> <span class="nv">$config</span><span class="p">);</span>
+</pre></div>
+</div>
+<div class="admonition important">
+<p class="first admonition-title">Important</p>
+<p class="last">This method will NOT write the XML file for you. It
+simply creates the XML layout. If you need to write the file
+use the <a class="reference internal" href="../helpers/file_helper.html"><span class="doc">File Helper</span></a>.</p>
+</div>
+</div>
+</div>
+<div class="section" id="backup-your-database">
+<h2><a class="toc-backref" href="#id10">Backup Your Database</a><a class="headerlink" href="#backup-your-database" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="database-backup-notes">
+<h3><a class="toc-backref" href="#id11">Database Backup Notes</a><a class="headerlink" href="#database-backup-notes" title="Permalink to this headline">¶</a></h3>
+<p>Permits you to backup your full database or individual tables. The
+backup data can be compressed in either Zip or Gzip format.</p>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">This feature is only available for MySQL and Interbase/Firebird databases.</p>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p>For Interbase/Firebird databases, the backup file name is the only parameter.</p>
+<p class="last">$this-&gt;dbutil-&gt;backup(‘db_backup_filename’);</p>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">Due to the limited execution time and memory available to PHP,
+backing up very large databases may not be possible. If your database is
+very large you might need to backup directly from your SQL server via
+the command line, or have your server admin do it for you if you do not
+have root privileges.</p>
+</div>
+</div>
+<div class="section" id="usage-example">
+<h3><a class="toc-backref" href="#id12">Usage Example</a><a class="headerlink" href="#usage-example" title="Permalink to this headline">¶</a></h3>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="c1">// Load the DB utility class</span>
+<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="p">();</span>
+
+<span class="c1">// Backup your entire database and assign it to a variable</span>
+<span class="nv">$backup</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">backup</span><span class="p">();</span>
+
+<span class="c1">// Load the file helper and write the file to your server</span>
+<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">helper</span><span class="p">(</span><span class="s1">&#39;file&#39;</span><span class="p">);</span>
+<span class="nx">write_file</span><span class="p">(</span><span class="s1">&#39;/path/to/mybackup.gz&#39;</span><span class="p">,</span> <span class="nv">$backup</span><span class="p">);</span>
+
+<span class="c1">// Load the download helper and send the file to your desktop</span>
+<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">helper</span><span class="p">(</span><span class="s1">&#39;download&#39;</span><span class="p">);</span>
+<span class="nx">force_download</span><span class="p">(</span><span class="s1">&#39;mybackup.gz&#39;</span><span class="p">,</span> <span class="nv">$backup</span><span class="p">);</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="setting-backup-preferences">
+<h3><a class="toc-backref" href="#id13">Setting Backup Preferences</a><a class="headerlink" href="#setting-backup-preferences" title="Permalink to this headline">¶</a></h3>
+<p>Backup preferences are set by submitting an array of values to the first
+parameter of the <code class="docutils literal"><span class="pre">backup()</span></code> method. Example:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$prefs</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
+        <span class="s1">&#39;tables&#39;</span>        <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">&#39;table1&#39;</span><span class="p">,</span> <span class="s1">&#39;table2&#39;</span><span class="p">),</span>   <span class="c1">// Array of tables to backup.</span>
+        <span class="s1">&#39;ignore&#39;</span>        <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(),</span>                     <span class="c1">// List of tables to omit from the backup</span>
+        <span class="s1">&#39;format&#39;</span>        <span class="o">=&gt;</span> <span class="s1">&#39;txt&#39;</span><span class="p">,</span>                       <span class="c1">// gzip, zip, txt</span>
+        <span class="s1">&#39;filename&#39;</span>      <span class="o">=&gt;</span> <span class="s1">&#39;mybackup.sql&#39;</span><span class="p">,</span>              <span class="c1">// File name - NEEDED ONLY WITH ZIP FILES</span>
+        <span class="s1">&#39;add_drop&#39;</span>      <span class="o">=&gt;</span> <span class="k">TRUE</span><span class="p">,</span>                        <span class="c1">// Whether to add DROP TABLE statements to backup file</span>
+        <span class="s1">&#39;add_insert&#39;</span>    <span class="o">=&gt;</span> <span class="k">TRUE</span><span class="p">,</span>                        <span class="c1">// Whether to add INSERT data to backup file</span>
+        <span class="s1">&#39;newline&#39;</span>       <span class="o">=&gt;</span> <span class="s2">&quot;</span><span class="se">\n</span><span class="s2">&quot;</span>                         <span class="c1">// Newline character used in backup file</span>
+<span class="p">);</span>
+
+<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">dbutil</span><span class="o">-&gt;</span><span class="na">backup</span><span class="p">(</span><span class="nv">$prefs</span><span class="p">);</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="description-of-backup-preferences">
+<h3><a class="toc-backref" href="#id14">Description of Backup Preferences</a><a class="headerlink" href="#description-of-backup-preferences" title="Permalink to this headline">¶</a></h3>
+<table border="1" class="docutils">
+<colgroup>
+<col width="16%" />
+<col width="16%" />
+<col width="16%" />
+<col width="51%" />
+</colgroup>
+<thead valign="bottom">
+<tr class="row-odd"><th class="head">Preference</th>
+<th class="head">Default Value</th>
+<th class="head">Options</th>
+<th class="head">Description</th>
+</tr>
+</thead>
+<tbody valign="top">
+<tr class="row-even"><td><strong>tables</strong></td>
+<td>empty array</td>
+<td>None</td>
+<td>An array of tables you want backed up. If left blank all tables will be
+exported.</td>
+</tr>
+<tr class="row-odd"><td><strong>ignore</strong></td>
+<td>empty array</td>
+<td>None</td>
+<td>An array of tables you want the backup routine to ignore.</td>
+</tr>
+<tr class="row-even"><td><strong>format</strong></td>
+<td>gzip</td>
+<td>gzip, zip, txt</td>
+<td>The file format of the export file.</td>
+</tr>
+<tr class="row-odd"><td><strong>filename</strong></td>
+<td>the current date/time</td>
+<td>None</td>
+<td>The name of the backed-up file. The name is needed only if you are using
+zip compression.</td>
+</tr>
+<tr class="row-even"><td><strong>add_drop</strong></td>
+<td>TRUE</td>
+<td>TRUE/FALSE</td>
+<td>Whether to include DROP TABLE statements in your SQL export file.</td>
+</tr>
+<tr class="row-odd"><td><strong>add_insert</strong></td>
+<td>TRUE</td>
+<td>TRUE/FALSE</td>
+<td>Whether to include INSERT statements in your SQL export file.</td>
+</tr>
+<tr class="row-even"><td><strong>newline</strong></td>
+<td>“\n”</td>
+<td>“\n”, “\r”, “\r\n”</td>
+<td>Type of newline to use in your SQL export file.</td>
+</tr>
+<tr class="row-odd"><td><strong>foreign_key_checks</strong></td>
+<td>TRUE</td>
+<td>TRUE/FALSE</td>
+<td>Whether output should keep foreign key checks enabled.</td>
+</tr>
+</tbody>
+</table>
+</div>
+</div>
+<div class="section" id="class-reference">
+<h2><a class="toc-backref" href="#id15">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
+<dl class="class">
+<dt id="CI_DB_utility">
+<em class="property">class </em><code class="descname">CI_DB_utility</code><a class="headerlink" href="#CI_DB_utility" title="Permalink to this definition">¶</a></dt>
+<dd><dl class="method">
+<dt id="CI_DB_utility::backup">
+<code class="descname">backup</code><span class="sig-paren">(</span><span class="optional">[</span><em>$params = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::backup" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$params</strong> (<em>array</em>) – An associative array of options</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">raw/(g)zipped SQL query string</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Perform a database backup, per user preferences.</p>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_DB_utility::database_exists">
+<code class="descname">database_exists</code><span class="sig-paren">(</span><em>$database_name</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::database_exists" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$database_name</strong> (<em>string</em>) – Database name</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE if the database exists, FALSE otherwise</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Check for the existence of a database.</p>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_DB_utility::list_databases">
+<code class="descname">list_databases</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::list_databases" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Array of database names found</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">array</td>
+</tr>
+</tbody>
+</table>
+<p>Retrieve a list of all the database names.</p>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_DB_utility::optimize_database">
+<code class="descname">optimize_database</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::optimize_database" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Array of optimization messages or FALSE on failure</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">array</td>
+</tr>
+</tbody>
+</table>
+<p>Optimizes the database.</p>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_DB_utility::optimize_table">
+<code class="descname">optimize_table</code><span class="sig-paren">(</span><em>$table_name</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::optimize_table" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$table_name</strong> (<em>string</em>) – Name of the table to optimize</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of optimization messages or FALSE on failure</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Optimizes a database table.</p>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_DB_utility::repair_table">
+<code class="descname">repair_table</code><span class="sig-paren">(</span><em>$table_name</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::repair_table" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$table_name</strong> (<em>string</em>) – Name of the table to repair</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of repair messages or FALSE on failure</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Repairs a database table.</p>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_DB_utility::csv_from_result">
+<code class="descname">csv_from_result</code><span class="sig-paren">(</span><em>$query</em><span class="optional">[</span>, <em>$delim = '</em>, <em>'</em><span class="optional">[</span>, <em>$newline = &quot;n&quot;</em><span class="optional">[</span>, <em>$enclosure = '&quot;'</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::csv_from_result" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$query</strong> (<em>object</em>) – A database result object</li>
+<li><strong>$delim</strong> (<em>string</em>) – The CSV field delimiter to use</li>
+<li><strong>$newline</strong> (<em>string</em>) – The newline character to use</li>
+<li><strong>$enclosure</strong> (<em>string</em>) – The enclosure delimiter to use</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The generated CSV file as a string</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Translates a database result object into a CSV document.</p>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_DB_utility::xml_from_result">
+<code class="descname">xml_from_result</code><span class="sig-paren">(</span><em>$query</em><span class="optional">[</span>, <em>$params = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::xml_from_result" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$query</strong> (<em>object</em>) – A database result object</li>
+<li><strong>$params</strong> (<em>array</em>) – An associative array of preferences</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The generated XML document as a string</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Translates a database result object into an XML document.</p>
+</dd></dl>
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