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For +example, let’s say you want to call the mysql_get_client_info() +function, which is <strong>not</strong> natively supported by CodeIgniter. You could +do so like this:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">db</span><span class="o">-></span><span class="na">call_function</span><span class="p">(</span><span class="s1">'get_client_info'</span><span class="p">);</span> +</pre></div> +</div> +<p>You must supply the name of the function, <strong>without</strong> the mysql_ +prefix, in the first parameter. The prefix is added automatically based +on which database driver is currently being used. This permits you to +run the same function on different database platforms. Obviously not all +function calls are identical between platforms, so there are limits to +how useful this function can be in terms of portability.</p> +<p>Any parameters needed by the function you are calling will be added to +the second parameter.</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">db</span><span class="o">-></span><span class="na">call_function</span><span class="p">(</span><span class="s1">'some_function'</span><span class="p">,</span> <span class="nv">$param1</span><span class="p">,</span> <span class="nv">$param2</span><span class="p">,</span> <span class="nx">etc</span><span class="o">..</span><span class="p">);</span> +</pre></div> +</div> +<p>Often, you will either need to supply a database connection ID or a +database result ID. The connection ID can be accessed using:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">db</span><span class="o">-></span><span class="na">conn_id</span><span class="p">;</span> +</pre></div> +</div> +<p>The result ID can be accessed from within your result object, like this:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$query</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">db</span><span class="o">-></span><span class="na">query</span><span class="p">(</span><span class="s2">"SOME QUERY"</span><span class="p">);</span> + +<span class="nv">$query</span><span class="o">-></span><span class="na">result_id</span><span class="p">;</span> +</pre></div> +</div> +</div> +</div> + + + </div> + <footer> + + <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> + + <a href="caching.html" class="btn btn-neutral float-right" title="Database Caching Class">Next <span class="fa fa-arrow-circle-right"></span></a> + + + <a href="metadata.html" class="btn btn-neutral" title="Database Metadata"><span class="fa fa-arrow-circle-left"></span> Previous</a> + + </div> + + + <hr/> + + <div role="contentinfo"> + <p> + © Copyright 2014 - 2019, British Columbia Institute of Technology. + Last updated on Jan 16, 2019. + </p> + </div> + + Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. + +</footer> + </div> + </div> + + </section> + + </div> + + + + + + <script type="text/javascript"> + var DOCUMENTATION_OPTIONS = { + URL_ROOT:'../', + VERSION:'3.1.10', + COLLAPSE_INDEX:false, + FILE_SUFFIX:'.html', + HAS_SOURCE: false + }; + </script> + <script type="text/javascript" src="../_static/jquery.js"></script> + <script type="text/javascript" src="../_static/underscore.js"></script> + <script type="text/javascript" src="../_static/doctools.js"></script> + + + + + + <script type="text/javascript" src="../_static/js/theme.js"></script> + + + + + <script type="text/javascript"> + jQuery(function () { + SphinxRtdTheme.StickyNav.enable(); + }); + </script> + + +</body> +</html>
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