diff options
| author | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
|---|---|---|
| committer | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
| commit | f4fb1db458fab52d0493ead52c9ea7e01206eaa7 (patch) | |
| tree | c549600f342f4d3f0df75a2f2f7c265be0f1cc72 /user_guide/libraries/uri.html | |
| parent | c4dd200c1155a118afa32cd91d9bd67bc243f83a (diff) | |
Moved tutorial to new user guide directory.
Diffstat (limited to 'user_guide/libraries/uri.html')
| -rw-r--r-- | user_guide/libraries/uri.html | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/user_guide/libraries/uri.html b/user_guide/libraries/uri.html deleted file mode 100644 index 0e1c26f1e..000000000 --- a/user_guide/libraries/uri.html +++ /dev/null @@ -1,252 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> -<head> - -<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> -<title>URI Class : CodeIgniter User Guide</title> - -<style type='text/css' media='all'>@import url('../userguide.css');</style> -<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' /> - -<script type="text/javascript" src="../nav/nav.js"></script> -<script type="text/javascript" src="../nav/prototype.lite.js"></script> -<script type="text/javascript" src="../nav/moo.fx.js"></script> -<script type="text/javascript" src="../nav/user_guide_menu.js"></script> - -<meta http-equiv='expires' content='-1' /> -<meta http-equiv= 'pragma' content='no-cache' /> -<meta name='robots' content='all' /> -<meta name='author' content='ExpressionEngine Dev Team' /> -<meta name='description' content='CodeIgniter User Guide' /> - -</head> -<body> - -<!-- START NAVIGATION --> -<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div> -<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> -<div id="masthead"> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td><h1>CodeIgniter User Guide Version 2.0.3</h1></td> -<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> -</tr> -</table> -</div> -<!-- END NAVIGATION --> - - -<!-- START BREADCRUMB --> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td id="breadcrumb"> -<a href="http://codeigniter.com/">CodeIgniter Home</a> › -<a href="../index.html">User Guide Home</a> › -URI Class -</td> -<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> -</tr> -</table> -<!-- END BREADCRUMB --> - -<br clear="all" /> - - -<!-- START CONTENT --> -<div id="content"> - - -<h1>URI Class</h1> - -<p>The URI Class provides functions that help you retrieve information from your URI strings. If you use URI routing, you can -also retrieve information about the re-routed segments.</p> - -<p class="important"><strong>Note:</strong> This class is initialized automatically by the system so there is no need to do it manually.</p> - -<h2>$this->uri->segment(<var>n</var>)</h2> - -<p>Permits you to retrieve a specific segment. Where <var>n</var> is the segment number you wish to retrieve. -Segments are numbered from left to right. For example, if your full URL is this:</p> - -<code>http://example.com/index.php/news/local/metro/crime_is_up</code> - -<p>The segment numbers would be this:</p> - -<ol> -<li>news</li> -<li>local</li> -<li>metro</li> -<li>crime_is_up</li> -</ol> - -<p>By default the function returns FALSE (boolean) if the segment does not exist. There is an optional second parameter that -permits you to set your own default value if the segment is missing. -For example, this would tell the function to return the number zero in the event of failure:</p> - -<code>$product_id = $this->uri->segment(3, 0);</code> - -<p>It helps avoid having to write code like this:</p> - -<code>if ($this->uri->segment(3) === FALSE)<br /> -{<br /> - $product_id = 0;<br /> -}<br /> -else<br /> -{<br /> - $product_id = $this->uri->segment(3);<br /> -}<br /> -</code> - -<h2>$this->uri->rsegment(<var>n</var>)</h2> - -<p>This function is identical to the previous one, except that it lets you retrieve a specific segment from your -re-routed URI in the event you are using CodeIgniter's <a href="../general/routing.html">URI Routing</a> feature.</p> - - -<h2>$this->uri->slash_segment(<var>n</var>)</h2> - -<p>This function is almost identical to <dfn>$this->uri->segment()</dfn>, except it adds a trailing and/or leading slash based on the second -parameter. If the parameter is not used, a trailing slash added. Examples:</p> - -<code>$this->uri->slash_segment(<var>3</var>);<br /> -$this->uri->slash_segment(<var>3</var>, 'leading');<br /> -$this->uri->slash_segment(<var>3</var>, 'both');</code> - -<p>Returns:</p> - -<ol> -<li>segment/</li> -<li>/segment</li> -<li>/segment/</li> -</ol> - - -<h2>$this->uri->slash_rsegment(<var>n</var>)</h2> - -<p>This function is identical to the previous one, except that it lets you add slashes a specific segment from your -re-routed URI in the event you are using CodeIgniter's <a href="../general/routing.html">URI Routing</a> feature.</p> - - - -<h2>$this->uri->uri_to_assoc(<var>n</var>)</h2> - -<p>This function lets you turn URI segments into and associative array of key/value pairs. Consider this URI:</p> - -<code>index.php/user/search/name/joe/location/UK/gender/male</code> - -<p>Using this function you can turn the URI into an associative array with this prototype:</p> - -<code>[array]<br /> -(<br /> - 'name' => 'joe'<br /> - 'location' => 'UK'<br /> - 'gender' => 'male'<br /> -)</code> - -<p>The first parameter of the function lets you set an offset. By default it is set to <kbd>3</kbd> since your -URI will normally contain a controller/function in the first and second segments. Example:</p> - -<code> -$array = $this->uri->uri_to_assoc(3);<br /> -<br /> -echo $array['name']; -</code> - - -<p>The second parameter lets you set default key names, so that the array returned by the function will always contain expected indexes, even if missing from the URI. Example:</p> - -<code> -$default = array('name', 'gender', 'location', 'type', 'sort');<br /> -<br /> -$array = $this->uri->uri_to_assoc(3, $default);</code> - -<p>If the URI does not contain a value in your default, an array index will be set to that name, with a value of FALSE.</p> - -<p>Lastly, if a corresponding value is not found for a given key (if there is an odd number of URI segments) the value will be set to FALSE (boolean).</p> - - -<h2>$this->uri->ruri_to_assoc(<var>n</var>)</h2> - -<p>This function is identical to the previous one, except that it creates an associative array using the -re-routed URI in the event you are using CodeIgniter's <a href="../general/routing.html">URI Routing</a> feature.</p> - - -<h2>$this->uri->assoc_to_uri()</h2> - -<p>Takes an associative array as input and generates a URI string from it. The array keys will be included in the string. Example:</p> - -<code>$array = array('product' => 'shoes', 'size' => 'large', 'color' => 'red');<br /> -<br /> -$str = $this->uri->assoc_to_uri($array);<br /> -<br /> -// Produces: product/shoes/size/large/color/red -</code> - - -<h2>$this->uri->uri_string()</h2> - -<p>Returns a string with the complete URI. For example, if this is your full URL:</p> - -<code>http://example.com/index.php/news/local/345</code> - -<p>The function would return this:</p> - -<code>/news/local/345</code> - - -<h2>$this->uri->ruri_string()</h2> - -<p>This function is identical to the previous one, except that it returns the -re-routed URI in the event you are using CodeIgniter's <a href="../general/routing.html">URI Routing</a> feature.</p> - - - -<h2>$this->uri->total_segments()</h2> - -<p>Returns the total number of segments.</p> - - -<h2>$this->uri->total_rsegments()</h2> - -<p>This function is identical to the previous one, except that it returns the total number of segments in your -re-routed URI in the event you are using CodeIgniter's <a href="../general/routing.html">URI Routing</a> feature.</p> - - - -<h2>$this->uri->segment_array()</h2> - -<p>Returns an array containing the URI segments. For example:</p> - -<code> -$segs = $this->uri->segment_array();<br /> -<br /> -foreach ($segs as $segment)<br /> -{<br /> - echo $segment;<br /> - echo '<br />';<br /> -}</code> - -<h2>$this->uri->rsegment_array()</h2> - -<p>This function is identical to the previous one, except that it returns the array of segments in your -re-routed URI in the event you are using CodeIgniter's <a href="../general/routing.html">URI Routing</a> feature.</p> - - - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="unit_testing.html">Unit Testing Class</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="user_agent.html">User Agent Class</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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