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API17

JHtml::

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Joomla 11.1 JHtml::_

Description

A class loader method.

The _ method of JHtml is a static function that grants quick access to a number of other static methods in the Joomla! platform's HTML subpackage, in particular those classes with the JHtml prefix (i.e. JHtmlBehavior, JHtmlGrid). The return value of this function depends on the return value of the method resolved by parsing the first parameter.

The $key Paremeter

JHtml::_() expects its first parameter to be a string of period-separated values representing a class prefix (optional), a file name, and a method, in that order. When only a filename and method are provided, as seen in the first example, the prefix defaults to "JHtml" and the resolved class name will consist of "JHtml<filename>." The filename segment of $key is used to find the file in which the class and method are defined among whatever include paths have been attached to the static JHtml class using JHtml::addIncludePath. The "/libraries/joomla/html/html" folder is attached to the JHtml class by default when "/libraries/joomla/html/html.php" is included, but other paths can be added, making the functionality of _ extensible.

Examples 1:

echo JHtml::_('form.token');

The above code will output the return value of JHtmlForm::token, found in "/libraries/joomla/html/html/form.php," (which happens to be a hidden form element containing an anti-spoofing token.)

Example 2:

echo JHtml::_('myExtension.button.push');

The above code will output the return value of a static method, myExtensionButton::push(), which should be defined in a file called "button.php," provided that this file exists in the default include path.

Additional Parameters

Any additinal parameters passed to JHtml::_() will be passed as parameters themselves to the resolved method.

Description:JHtml:: [Edit Descripton]

public static function _ ($key)
Parameter Type Default Description
$key

See also

SeeAlso:JHtml:: [Edit See Also]

User contributed notes

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