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API16

JHtml/

From Joomla! Documentation

< API16:JHtml
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Contents

Description

Class loader method

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Syntax

static _($type)
Parameter Name Default Value Description
$type The name of helper method to load, (prefix).(class).function prefix and class are optional and can be used to load custom html helpers.

Defined in

libraries/joomla/html/html.php

Importing

jimport( 'joomla.html.html' );

Source Body

public static function _($type)
{
        $type = preg_replace('#[^A-Z0-9_\.]#i', '', $type);
 
        // Check to see if we need to load a helper file
        $parts = explode('.', $type);
 
        $prefix = (count($parts) == 3 ? array_shift($parts) : 'JHtml');
        $file   = (count($parts) == 2 ? array_shift($parts) : '');
        $func   = array_shift($parts);
 
        $key = strtolower($prefix.'.'.$file.'.'.$func);
 
        if (array_key_exists($key, self::$registry))
        {
                $function = self::$registry[$key];
                $args = func_get_args();
                // remove function name from arguments
                array_shift($args);
                return JHtml::call($function, $args);
        }
 
        $className = $prefix.ucfirst($file);
 
        if (!class_exists($className))
        {
                jimport('joomla.filesystem.path');
                if ($path = JPath::find(JHtml::$includePaths, strtolower($file).'.php'))
                {
                        require_once $path;
 
                        if (!class_exists($className))
                        {
                                JError::raiseError(500, $className.'::' .$func. ' not found in file.');
                                return false;
                        }
                }
                else
                {
                        JError::raiseError(500, $prefix.$file . ' not supported. File not found.');
                        return false;
                }
        }
 
        $toCall = array($className, $func);
        if (is_callable($toCall))
        {
                JHtml::register($key, $toCall);
                $args = func_get_args();
                // remove function name from arguments
                array_shift($args);
                return JHtml::call($toCall, $args);
        }
        else
        {
                JError::raiseError(500, $className.'::'.$func.' not supported.');
                return false;
        }
}

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Examples

<CodeExamplesForm />