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| author | Eric Barnes <eric@ericlbarnes.com> | 2011-11-27 06:30:22 +0100 |
|---|---|---|
| committer | Eric Barnes <eric@ericlbarnes.com> | 2011-11-27 06:30:22 +0100 |
| commit | 7e66dda705743cbfe1d522ddb73e5694006ec42c (patch) | |
| tree | c08b63deb28c09ec49d9173280f1ca234debfe50 /user_guide/libraries/parser.html | |
| parent | 7eceb03f083643254c7393c6b5ebe539e344a1ba (diff) | |
| parent | e101593561a10632c1d63180436b19f1d7115046 (diff) | |
Merge branch 'refs/heads/develop' into feature/unit-tests
Conflicts:
user_guide/helpers/number_helper.html
Diffstat (limited to 'user_guide/libraries/parser.html')
| -rw-r--r-- | user_guide/libraries/parser.html | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/user_guide/libraries/parser.html b/user_guide/libraries/parser.html deleted file mode 100644 index b8a53452e..000000000 --- a/user_guide/libraries/parser.html +++ /dev/null @@ -1,212 +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>Template Parser 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> › -Template Parser 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>Template Parser Class</h1> - -<p>The Template Parser Class enables you to parse pseudo-variables contained within your view files. It can parse simple -variables or variable tag pairs. If you've never used a template engine, pseudo-variables look like this:</p> - -<code><html><br /> -<head><br /> -<title><kbd>{blog_title}</kbd></title><br /> -</head><br /> -<body><br /> -<br /> -<h3><kbd>{blog_heading}</kbd></h3><br /> -<br /> -<kbd>{blog_entries}</kbd><br /> -<h5><kbd>{title}</kbd></h5><br /> -<p><kbd>{body}</kbd></p><br /> -<kbd>{/blog_entries}</kbd><br /> - -</body><br /> -</html></code> - -<p>These variables are not actual PHP variables, but rather plain text representations that allow you to eliminate -PHP from your templates (view files).</p> - -<p class="important"><strong>Note:</strong> CodeIgniter does <strong>not</strong> require you to use this class -since using pure PHP in your view pages lets them run a little faster. However, some developers prefer to use a template engine if -they work with designers who they feel would find some confusion working with PHP.</p> - -<p><strong>Also Note:</strong> The Template Parser Class is <strong>not</strong> a -full-blown template parsing solution. We've kept it very lean on purpose in order to maintain maximum performance.</p> - - -<h2>Initializing the Class</h2> - -<p>Like most other classes in CodeIgniter, the Parser class is initialized in your controller using the <dfn>$this->load->library</dfn> function:</p> - -<code>$this->load->library('parser');</code> -<p>Once loaded, the Parser library object will be available using: <dfn>$this->parser</dfn></p> - - -<p>The following functions are available in this library:</p> - -<h2>$this->parser->parse()</h2> - -<p>This method accepts a template name and data array as input, and it generates a parsed version. Example:</p> - -<code>$this->load->library('parser');<br /> -<br /> -$data = array(<br /> - 'blog_title' => 'My Blog Title',<br /> - 'blog_heading' => 'My Blog Heading'<br /> - );<br /> -<br /> -$this->parser->parse('blog_template', $data);</code> - -<p>The first parameter contains the name of the <a href="../general/views.html">view file</a> (in this example the file would be called blog_template.php), -and the second parameter contains an associative array of data to be replaced in the template. In the above example, the -template would contain two variables: {blog_title} and {blog_heading}</p> - -<p>There is no need to "echo" or do something with the data returned by <dfn>$this->parser->parse()</dfn>. It is automatically -passed to the output class to be sent to the browser. However, if you do want the data returned instead of sent to the output class you can -pass TRUE (boolean) to the third parameter:</p> - -<code>$string = $this->parser->parse('blog_template', $data, TRUE);</code> - -<h2>$this->parser->parse_string()</h2> - -<p>This method works exactly like parse(), only accepts a string as the first parameter in place of a view file.</p> - - -<h2>Variable Pairs</h2> - -<p>The above example code allows simple variables to be replaced. What if you would like an entire block of variables to be -repeated, with each iteration containing new values? Consider the template example we showed at the top of the page:</p> - -<code><html><br /> -<head><br /> -<title><kbd>{blog_title}</kbd></title><br /> -</head><br /> -<body><br /> -<br /> -<h3><kbd>{blog_heading}</kbd></h3><br /> -<br /> -<kbd>{blog_entries}</kbd><br /> -<h5><kbd>{title}</kbd></h5><br /> -<p><kbd>{body}</kbd></p><br /> -<kbd>{/blog_entries}</kbd><br /> - -</body><br /> -</html></code> - -<p>In the above code you'll notice a pair of variables: <kbd>{blog_entries}</kbd> data... <kbd>{/blog_entries}</kbd>. -In a case like this, the entire chunk of data between these pairs would be repeated multiple times, corresponding -to the number of rows in a result.</p> - -<p>Parsing variable pairs is done using the identical code shown above to parse single variables, -except, you will add a multi-dimensional array corresponding to your variable pair data. -Consider this example:</p> - - -<code>$this->load->library('parser');<br /> -<br /> -$data = array(<br /> - 'blog_title' => 'My Blog Title',<br /> - 'blog_heading' => 'My Blog Heading',<br /> - 'blog_entries' => array(<br /> - array('title' => 'Title 1', 'body' => 'Body 1'),<br /> - array('title' => 'Title 2', 'body' => 'Body 2'),<br /> - array('title' => 'Title 3', 'body' => 'Body 3'),<br /> - array('title' => 'Title 4', 'body' => 'Body 4'),<br /> - array('title' => 'Title 5', 'body' => 'Body 5')<br /> - )<br /> - );<br /> -<br /> -$this->parser->parse('blog_template', $data);</code> - -<p>If your "pair" data is coming from a database result, which is already a multi-dimensional array, you can simply -use the database result_array() function:</p> - -<code> -$query = $this->db->query("SELECT * FROM blog");<br /> -<br /> -$this->load->library('parser');<br /> -<br /> -$data = array(<br /> - 'blog_title' => 'My Blog Title',<br /> - 'blog_heading' => 'My Blog Heading',<br /> - 'blog_entries' => $query->result_array()<br /> - );<br /> -<br /> -$this->parser->parse('blog_template', $data);</code> - - - - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="trackback.html">Trackback Class</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="typography.html">Typography</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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