user_guide_src/source/helpers/xml_helper.rst


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##########
XML Helper
##########

The XML Helper file contains functions that assist in working with XML
data.

.. contents::
  :local:

.. raw:: html

  <div class="custom-index container"></div>

Loading this Helper
===================

This helper is loaded using the following code

::

	$this->load->helper('xml');

Available Functions
===================

The following functions are available:

.. php:function:: xml_convert($str[, $protect_all = FALSE])

	:param string $str: the text string to convert
	:param bool $protect_all: Whether to protect all content that looks like a potential entity instead of just numbered entities, e.g. &foo;
	:returns: XML-converted string
	:rtype:	string

	Takes a string as input and converts the following reserved XML
	characters to entities:

	  - Ampersands: &
	  - Less than and greater than characters: < >
	  - Single and double quotes: ' "
	  - Dashes: -

	This function ignores ampersands if they are part of existing numbered
	character entities, e.g. &#123;. Example::

		$string = '<p>Here is a paragraph & an entity (&#123;).</p>';
		$string = xml_convert($string);
		echo $string;

	outputs:

	.. code-block:: html

		&lt;p&gt;Here is a paragraph &amp; an entity (&#123;).&lt;/p&gt;