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<!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>HTML Helper : 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 1.7.1</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> › HTML Helper</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>HTML Helper</h1><p>The HTML Helper file contains functions that assist in working with HTML.</p><h2>Loading this Helper</h2><p>This helper is loaded using the following code:</p><code>$this->load->helper('html');</code><p>The following functions are available:</p><h2>br()</h2><p>Generates line break tags (<br />) based on the number you submit. Example:</p><code>echo br(3);</code><p>The above would produce: <br /><br /><br /></p><h2>heading()</h2><p>Lets you create HTML <h1> tags. The first parameter will contain the data, thesecond the size of the heading. Example:</p><code>echo heading('Welcome!', 3);</code><p>The above would produce: <h3>Welcome!</h3></p><h2>img()</h2><p>Lets you create HTML <img /> tags. The first parameter contains the image source. Example:</p><code>echo img('images/picture.jpg');<br />// gives <img src="http://site.com/images/picture.jpg" /></code><p>There is an optional second parameter that is a TRUE/FALSE value that specifics if the src should have the page specified by $config['index_page'] added to the address it creates. Presumably, this would be if you were using a media controller.</p><p><code>echo img('images/picture.jpg', TRUE);<br />// gives <img src="http://site.com/index.php/images/picture.jpg" /></code></p><p>Additionally, an associative array can be passed to the img() function for complete control over all attributes and values.</p><p><code> $image_properties = array(<br /> 'src' => 'images/picture.jpg',<br /> 'alt' => 'Me, demonstrating how to eat 4 slices of pizza at one time',<br /> 'class' => 'post_images',<br /> 'width' => '200',<br /> 'height' => '200',<br /> 'title' => 'That was quite a night',<br /> 'rel' => 'lightbox',<br />);<br /><br />img($image_properties);<br />// <img src="http://site.com/index.php/images/picture.jpg" alt="Me, demonstrating how to eat 4 slices of pizza at one time" class="post_images" width="200" height="200" title="That was quite a night" rel="lightbox" /></code></p><h2>link_tag()</h2><p>Lets you create HTML <link /> tags. This is useful for stylesheet links, as well as other links. The parameters are href, with optional rel, type, title, media and index_page. index_page is a TRUE/FALSE value that specifics if the href should have the page specified by $config['index_page'] added to the address it creates.<code>echo link_tag('css/mystyles.css');<br />// gives <link href="http://site.com/css/mystyles.css" rel="stylesheet" type="text/css" /></code></p><p>Further examples:</p><code>echo link_tag('favicon.ico', 'shortcut icon', 'image/ico');<br />// <link href="http://site.com/favicon.ico" rel="shortcut icon" type="image/ico" /><br /><br />echo link_tag('feed', 'alternate', 'application/rss+xml', 'My RSS Feed');<br />// <link href="http://site.com/feed" rel="alternate" type="application/rss+xml" title="My RSS Feed" /> </code><p>Additionally, an associative array can be passed to the link() function for complete control over all attributes and values.</p><p><code>$link = array(<br /> 'href' => 'css/printer.css',<br /> 'rel' => 'stylesheet',<br /> 'type' => 'text/css',<br /> 'media' => 'print'<br />);<br /><br />echo link_tag($link);<br />// <link href="http://site.com/css/printer.css" rel="stylesheet" type="text/css" media="print" /></code></p><h2>nbs()</h2><p>Generates non-breaking spaces (&nbsp;) based on the number you submit. Example:</p><code>echo nbs(3);</code><p>The above would produce: &nbsp;&nbsp;&nbsp;</p><h2>ol() and ul()</h2><p>Permits you to generate ordered or unordered HTML lists from simple or multi-dimensional arrays. Example:</p><code>$this->load->helper('html');<br /><br />$list = array(<br /> 'red', <br /> 'blue', <br /> 'green',<br /> 'yellow'<br /> );<br /><br />$attributes = array(<br /> 'class' => 'boldlist',<br /> 'id' => 'mylist'<br /> );<br /><br />echo ul($list, $attributes);<br /></code><p>The above code will produce this:</p><code><ul class="boldlist" id="mylist"><br /> <li>red</li><br /> <li>blue</li><br /> <li>green</li><br /> <li>yellow</li><br /></ul></code><p>Here is a more complex example, using a multi-dimensional array:</p><code>$this->load->helper('html');<br /><br />$attributes = array(<br /> 'class' => 'boldlist',<br /> 'id' => 'mylist'<br /> );<br /><br />$list = array(<br /> 'colors' => array(<br /> 'red',<br /> 'blue',<br /> 'green'<br /> ),<br /> 'shapes' => array(<br /> 'round', <br /> 'square',<br /> 'circles' => array(<br /> 'ellipse', <br /> 'oval', <br /> 'sphere'<br /> )<br /> ),<br /> 'moods' => array(<br /> 'happy', <br /> 'upset' => array(<br /> 'defeated' => array(<br /> 'dejected',<br /> 'disheartened',<br /> 'depressed'<br /> ),<br /> 'annoyed',<br /> 'cross',<br /> 'angry'<br /> )<br /> )<br /> );<br /><br /><br />echo ul($list, $attributes);</code><p>The above code will produce this:</p><code><ul class="boldlist" id="mylist"><br /> <li>colors<br /> <ul><br /> <li>red</li><br /> <li>blue</li><br /> <li>green</li><br /> </ul><br /> </li><br /> <li>shapes<br /> <ul><br /> <li>round</li><br /> <li>suare</li><br /> <li>circles<br /> <ul><br /> <li>elipse</li><br /> <li>oval</li><br /> <li>sphere</li><br /> </ul><br /> </li><br /> </ul><br /> </li><br /> <li>moods<br /> <ul><br /> <li>happy</li><br /> <li>upset<br /> <ul><br /> <li>defeated<br /> <ul><br /> <li>dejected</li><br /> <li>disheartened</li><br /> <li>depressed</li><br /> </ul><br /> </li><br /> <li>annoyed</li><br /> <li>cross</li><br /> <li>angry</li><br /> </ul><br /> </li><br /> </ul><br /> </li><br /></ul></code><h2>meta()</h2><p>Helps you generate meta tags. You can pass strings to the function, or simple arrays, or multidimensional ones. Examples:</p><code>echo meta('description', 'My Great site');<br />// Generates: <meta name="description" content="My Great Site" /><br /><br /><br />echo meta('Content-type', 'text/html; charset=utf-8', 'equiv'); // Note the third parameter. Can be "equiv" or "name"<br />// Generates: <meta http-equiv="Content-type" content="text/html; charset=utf-8" /><br /><br /><br />echo meta(array('name' => 'robots', 'content' => 'no-cache'));<br />// Generates: <meta name="robots" content="no-cache" /><br /><br /><br />$meta = array(<br /> array('name' => 'robots', 'content' => 'no-cache'),<br /> array('name' => 'description', 'content' => 'My Great Site'),<br /> array('name' => 'keywords', 'content' => 'love, passion, intrigue, deception'),<br /> array('name' => 'robots', 'content' => 'no-cache'),<br /> array('name' => 'Content-type', 'content' => 'text/html; charset=utf-8', 'type' => 'equiv')<br /> );<br /><br />echo meta($meta);<br />// Generates: <br />// <meta name="robots" content="no-cache" /><br />// <meta name="description" content="My Great Site" /><br />// <meta name="keywords" content="love, passion, intrigue, deception" /><br />// <meta name="robots" content="no-cache" /><br />// <meta http-equiv="Content-type" content="text/html; charset=utf-8" /></code><h2>doctype()</h2><p>Helps you generate document type declarations, or DTD's. XHTML 1.0 Strict is used by default, but many doctypes are available.</p><code>echo docytype();<br />// <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><br /><br />echo doctype('html4-trans');<br />// <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"></code><p>The following is a list of doctype choices. These are configurable, and pulled from <samp>application/config/doctypes.php</samp></p><table cellpadding="0" cellspacing="1" border="0" style="width:100%" class="tableborder"><tr><th>Doctype</th><th>Option</th><th>Result</th></tr><tr><td class="td">XHTML 1.1</td><td class="td">doctype('xhtml11')</td><td class="td"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"></td></tr><tr><td class="td">XHTML 1.0 Strict</td><td class="td">doctype('xhtml1-strict')</td><td class="td"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"></td></tr><tr><td class="td">XHTML 1.0 Transitional</td><td class="td">doctype('xhtml1-trans')</td><td class="td"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"></td></tr><tr><td class="td">XHTML 1.0 Frameset</td><td class="td">doctype('xhtml1-frame')</td><td class="td"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd"></td></tr><tr><td class="td">HTML 5</td><td class="td">doctype('html5')</td><td class="td"><!DOCTYPE html></td></tr><tr><td class="td">HTML 4 Strict</td><td class="td">doctype('html4-strict')</td><td class="td"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"></td></tr><tr><td class="td">HTML 4 Transitional</td><td class="td">doctype('html4-trans')</td><td class="td"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"></td></tr><tr><td class="td">HTML 4 Frameset</td><td class="td">doctype('html4-frame')</td><td class="td"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd"></td></tr></table></div><!-- END CONTENT --><div id="footer"><p>Previous Topic: <a href="form_helper.html">Form Helper</a> · <a href="#top">Top of Page</a> · <a href="../index.html">User Guide Home</a> · Next Topic: <a href="path_helper.html"> Path Helper</a></p><p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006-2008 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p></div></body></html>