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HTML Helper¶
The HTML Helper file contains functions that assist in working with HTML. This helper is loaded using the following code:
ee()->load->helper('html');
Available Functions¶
-
heading
([$data = ''[, $h = '1'[, $attributes = '']]])¶ Parameters: - $data (string) – Content
- $h (string) – Heading level
- $attributes (array) – HTML attributes
Returns: HTML heading tag
Return type: string
Lets you create HTML heading tags. The first parameter will contain the data, the second the size of the heading. Example:
echo heading('Welcome!', 3);
The above would produce: <h3>Welcome!</h3>
Additionally, in order to add attributes to the heading tag such as HTML classes, ids or inline styles, a third parameter is available:
echo heading('Welcome!', 3, 'class="pink"')
The above code produces:
<h3 class="pink">Welcome!<h3>
-
img
([$src = ''[, $index_page = FALSE[, $attributes = '']]])¶ Parameters: - $src (string) – Image source data
- $index_page (bool) – Whether to treat $src as a routed URI string
- $attributes (array) – HTML attributes
Returns: HTML image tag
Return type: string
Lets you create HTML
<img />
tags. The first parameter contains the image source. Example:echo img('images/picture.jpg'); // gives <img src="http://site.com/images/picture.jpg" />
There is an optional second parameter that is a
TRUE
/FALSE
value that specifics if thesrc
should have the page specified by$config['index_page']
added to the address it creates. Presumably, this would be if you were using a media controller:echo img('images/picture.jpg', TRUE); // gives <img src="http://site.com/index.php/images/picture.jpg" alt="" />
Additionally, an associative array can be passed to the
img()
function for complete control over all attributes and values. If analt
attribute is not provided, CodeIgniter will generate an empty string.Example:
$image_properties = array( 'src' => 'images/picture.jpg', 'alt' => 'Me, demonstrating how to eat 4 slices of pizza at one time', 'class' => 'post_images', 'width' => '200', 'height'=> '200', 'title' => 'That was quite a night', 'rel' => 'lightbox' ); img($image_properties); // <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" />
-
link_tag
([$href = ''[, $rel = 'stylesheet'[, $type = 'text/css'[, $title = ''[, $media = ''[, $index_page = FALSE]]]]]])¶ Parameters: - $href (string) – What are we linking to
- $rel (string) – Relation type
- $type (string) – Type of the related document
- $title (string) – Link title
- $media (string) – Media type
- $index_page (bool) – Whether to treat $src as a routed URI string
Returns: HTML link tag
Return type: string
Lets you create HTML
<link />
tags. This is useful for stylesheet links, as well as other links. The parameters arehref
, with optionalrel
,type
,title
,media
andindex_page
.index_page
is a boolean value that specifies if thehref
should have the page specified by$config['index_page']
added to the address it creates.Example:
echo link_tag('css/mystyles.css'); // gives <link href="http://site.com/css/mystyles.css" rel="stylesheet" type="text/css" />
Further examples:
echo link_tag('favicon.ico', 'shortcut icon', 'image/ico'); // <link href="http://site.com/favicon.ico" rel="shortcut icon" type="image/ico" /> echo link_tag('feed', 'alternate', 'application/rss+xml', 'My RSS Feed'); // <link href="http://site.com/feed" rel="alternate" type="application/rss+xml" title="My RSS Feed" />
Additionally, an associative array can be passed to the
link()
function for complete control over all attributes and values:$link = array( 'href' => 'css/printer.css', 'rel' => 'stylesheet', 'type' => 'text/css', 'media' => 'print' ); echo link_tag($link); // <link href="http://site.com/css/printer.css" rel="stylesheet" type="text/css" media="print" />
-
ul
($list[, $attributes = ''])¶ Parameters: - $list (array) – List entries
- $attributes (array) – HTML attributes
Returns: HTML-formatted unordered list
Return type: string
Permits you to generate ordered or unordered HTML lists from simple or multi-dimensional arrays. Example:
$list = array( 'red', 'blue', 'green', 'yellow' ); $attributes = array( 'class' => 'boldlist', 'id' => 'mylist' ); echo ul($list, $attributes);
The above code will produce this:
<ul class="boldlist" id="mylist"> <li>red</li> <li>blue</li> <li>green</li> <li>yellow</li> </ul>
Here is a more complex example, using a multi-dimensional array:
$attributes = array( 'class' => 'boldlist', 'id' => 'mylist' ); $list = array( 'colors' => array( 'red', 'blue', 'green' ), 'shapes' => array( 'round', 'square', 'circles' => array( 'ellipse', 'oval', 'sphere' ) ), 'moods' => array( 'happy', 'upset' => array( 'defeated' => array( 'dejected', 'disheartened', 'depressed' ), 'annoyed', 'cross', 'angry' ) ) ); echo ul($list, $attributes);
The above code will produce this:
<ul class="boldlist" id="mylist"> <li>colors <ul> <li>red</li> <li>blue</li> <li>green</li> </ul> </li> <li>shapes <ul> <li>round</li> <li>suare</li> <li>circles <ul> <li>elipse</li> <li>oval</li> <li>sphere</li> </ul> </li> </ul> </li> <li>moods <ul> <li>happy</li> <li>upset <ul> <li>defeated <ul> <li>dejected</li> <li>disheartened</li> <li>depressed</li> </ul> </li> <li>annoyed</li> <li>cross</li> <li>angry</li> </ul> </li> </ul> </li> </ul>
-
ol
($list, $attributes = '')¶ Parameters: - $list (array) – List entries
- $attributes (array) – HTML attributes
Returns: HTML-formatted ordered list
Return type: string
Identical to
ul()
, only it produces the<ol>
tag for ordered lists instead of<ul>
.
-
meta
([$name = ''[, $content = ''[, $type = 'name'[, $newline = "n"]]]])¶ Parameters: - $name (string) – Meta name
- $content (string) – Meta content
- $type (string) – Meta type
- $newline (string) – Newline character
Returns: HTML meta tag
Return type: string
Helps you generate meta tags. You can pass strings to the function, or simple arrays, or multidimensional ones.
Examples:
echo meta('description', 'My Great site'); // Generates: <meta name="description" content="My Great Site" /> echo meta('Content-type', 'text/html; charset=utf-8', 'equiv'); // Note the third parameter. Can be "equiv" or "name" // Generates: <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> echo meta(array('name' => 'robots', 'content' => 'no-cache')); // Generates: <meta name="robots" content="no-cache" /> $meta = array( array( 'name' => 'robots', 'content' => 'no-cache' ), array( 'name' => 'description', 'content' => 'My Great Site' ), array( 'name' => 'keywords', 'content' => 'love, passion, intrigue, deception' ), array( 'name' => 'robots', 'content' => 'no-cache' ), array( 'name' => 'Content-type', 'content' => 'text/html; charset=utf-8', 'type' => 'equiv' ) ); echo meta($meta); // Generates: // <meta name="robots" content="no-cache" /> // <meta name="description" content="My Great Site" /> // <meta name="keywords" content="love, passion, intrigue, deception" /> // <meta name="robots" content="no-cache" /> // <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
-
doctype
([$type = 'xhtml1-strict'])¶ Parameters: - $type (string) – Doctype name
Returns: HTML DocType tag
Return type: string
Helps you generate document type declarations, or DTD’s. XHTML 1.0 Strict is used by default, but many doctypes are available.
Example:
echo doctype(); // <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> echo doctype('html4-trans'); // <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
The following is a list of doctype choices.
Document type Option Result XHTML 1.1 xhtml11 <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.1//EN” “http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd”> XHTML 1.0 Strict xhtml1-strict <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd”> XHTML 1.0 Transitional xhtml1-trans <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> XHTML 1.0 Frameset xhtml1-frame <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Frameset//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd”> HTML 5 html5 <!DOCTYPE html> HTML 4 Strict html4-strict <!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01//EN” “http://www.w3.org/TR/html4/strict.dtd”> HTML 4 Transitional html4-trans <!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd”> HTML 4 Frameset html4-frame <!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Frameset//EN” “http://www.w3.org/TR/html4/frameset.dtd”>
-
br
([$count = 1])¶ Parameters: - $count (int) – Number of times to repeat the tag
Returns: HTML line break tag
Return type: string
Generates line break tags (
<br />
) based on the number you submit. Example:echo br(3);
The above would produce:
<br /><br /><br />
Deprecated since version 3.2.0: Use the native
str_repeat()
in combination with<br />
instead.
-
nbs
([$num = 1])¶ Parameters: - $num (int) – Number of space entities to produce
Returns: A sequence of non-breaking space HTML entities
Return type: string
Generates non-breaking spaces (
) based on the number you submit. Example:echo nbs(3);
The above would produce:
Deprecated since version 3.2.0: Use the native
str_repeat()
in combination with
instead.