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Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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Pascal Kriete1f622292011-04-07 12:06:51 -0400[diff] [blame]31<td><h1>CodeIgniter User Guide Version 2.0.2</h1></td>
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]32<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
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43<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
44<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
45Upgrading from 1.4.0 to 1.4.1 </td>
46<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&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
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55<div id="content">
56
57<h1>Upgrading from 1.4.0 to 1.4.1</h1>
58
Derek Jones37f4b9c2011-07-01 17:56:50 -0500[diff] [blame]59<p class="important"><strong>Note:</strong> The instructions on this page assume you are running version 1.4.0. If you
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]60have not upgraded to that version please do so first.</p>
61
62<p>Before performing an update you should take your site offline by replacing the index.php file with a static one.</p>
63
64
65
66<h2>Step 1: Update your CodeIgniter files</h2>
67
68<p>Replace the following directories in your "system" folder with the new versions:</p>
69
70<p class="important"><strong>Note:</strong> If you have any custom developed files in these folders please make copies of them first.</p>
71
72<ul>
73<li>codeigniter</li>
74<li>drivers</li>
75<li>helpers</li>
76<li>libraries</li>
77</ul>
78
79
80<h2>Step 2: Update your config.php file</h2>
81
82<p>Open your <dfn>application/config/config.php</dfn> file and add this new item:</p>
83
84<pre>
85
86/*
87|--------------------------------------------------------------------------
88| Output Compression
89|--------------------------------------------------------------------------
90|
Derek Jones37f4b9c2011-07-01 17:56:50 -0500[diff] [blame]91| Enables Gzip output compression for faster page loads. When enabled,
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]92| the output class will test whether your server supports Gzip.
93| Even if it does, however, not all browsers support compression
94| so enable only if you are reasonably sure your visitors can handle it.
95|
Derek Jones37f4b9c2011-07-01 17:56:50 -0500[diff] [blame]96| VERY IMPORTANT: If you are getting a blank page when compression is enabled it
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]97| means you are prematurely outputting something to your browser. It could
Derek Jones37f4b9c2011-07-01 17:56:50 -0500[diff] [blame]98| even be a line of whitespace at the end of one of your scripts. For
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]99| compression to work, nothing can be sent before the output buffer is called
Derek Jones37f4b9c2011-07-01 17:56:50 -0500[diff] [blame]100| by the output class. Do not "echo" any values with compression enabled.
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]101|
102*/
103$config['compress_output'] = FALSE;
104
105</pre>
106
107
108
109<h2>Step 3: Rename an Autoload Item</h2>
110
111<p>Open the following file: <dfn>application/config/autoload.php</dfn></p>
112
113<p>Find this array item:</p>
114
115<code>$autoload['core'] = array();</code>
116
117<p>And rename it to this:</p>
118
119<code>$autoload['libraries'] = array();</code>
120
121<p>This change was made to improve clarity since some users were not sure that their own libraries could be auto-loaded.</p>
122
123
124
125
126
127
128<h2>Step 4: Update your user guide</h2>
129
130<p>Please also replace your local copy of the user guide with the new version.</p>
131
132</div>
133<!-- END CONTENT -->
134
135
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137<p>
138Previous Topic:&nbsp;&nbsp;<a href="index.html">Installation Instructions</a>
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142Next Topic:&nbsp;&nbsp;<a href="troubleshooting.html">Troubleshooting</a>
143</p>
Derek Jones898949f2011-01-28 07:42:16 -0600[diff] [blame]144<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]145</div>
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