bzr branch
http://gegoxaren.bato24.eu/bzr/lenasys/trunk
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20.1.1
by galaxyAbstractor
* Added an simple admin panel to the codeviewer-cmssy stuff |
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<title>Handling Multiple Environments : CodeIgniter User Guide</title> |
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<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div> |
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<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> |
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<tr> |
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<td><h1>CodeIgniter User Guide Version 2.1.3</h1></td> |
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<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> |
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</tr> |
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<tr> |
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<td id="breadcrumb"> |
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<a href="http://codeigniter.com/">CodeIgniter Home</a> › |
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<a href="../index.html">User Guide Home</a> › |
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Handling Multiple Environments |
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<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td> |
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<!-- START CONTENT -->
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<div id="content"> |
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<h1>Handling Multiple Environments</h1> |
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<p> |
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Developers often desire different system behavior depending on whether |
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an application is running in a development or production |
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environment. For example, verbose error output is something that would |
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be useful while developing an application, but it may also pose a security issue when "live". |
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</p> |
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<h2>The ENVIRONMENT Constant</h2> |
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<p> |
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By default, CodeIgniter comes with the environment constant set to |
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'<kbd>development</kbd>'. At the top of index.php, you will see: |
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</p> |
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<code> |
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define('<var>ENVIRONMENT</var>', '<var>development</var>');
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</code> |
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<p> |
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In addition to affecting some basic framework behavior (see the next section), |
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you may use this constant in your own development to differentiate |
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between which environment you are running in. |
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</p> |
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<h2>Effects On Default Framework Behavior</h2> |
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<p> |
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There are some places in the CodeIgniter system where the <kbd>ENVIRONMENT</kbd> |
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constant is used. This section describes how default framework behavior is |
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affected. |
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</p> |
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<h3>Error Reporting</h3> |
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<p> |
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Setting the <kbd>ENVIRONMENT</kbd> constant to a value of '<kbd>development</kbd>' will |
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cause all PHP errors to be rendered to the browser when they occur. Conversely, |
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setting the constant to '<kbd>production</kbd>' will disable all error output. Disabling |
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error reporting in production is a <a href="security.html">good security practice</a>. |
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</p> |
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<h3>Configuration Files</h3> |
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<p> |
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Optionally, you can have CodeIgniter load environment-specific |
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configuration files. This may be useful for managing things like differing API keys |
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across multiple environments. This is described in more detail in the |
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environment section of the <a href="../libraries/config.html#environments">Config Class</a> documentation. |
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</p> |
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</div> |
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Previous Topic: <a href="managing_apps.html">Managing Applications</a> |
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<a href="#top">Top of Page</a> · |
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