user_guide_src/source/helpers/number_helper.rst

#############
Number Helper
#############

The Number Helper file contains functions that help you work with
numeric 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('number');

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

The following functions are available:


.. function:: byte_format($num[, $precision = 1])

	:param	mixed	$num: Number of bytes
	:param	int	$precision: Floating point precision
	:returns:	string

	Formats numbers as bytes, based on size, and adds the appropriate
	suffix. Examples::

		echo byte_format(456); // Returns 456 Bytes
		echo byte_format(4567); // Returns 4.5 KB
		echo byte_format(45678); // Returns 44.6 KB
		echo byte_format(456789); // Returns 447.8 KB
		echo byte_format(3456789); // Returns 3.3 MB
		echo byte_format(12345678912345); // Returns 1.8 GB
		echo byte_format(123456789123456789); // Returns 11,228.3 TB

	An optional second parameter allows you to set the precision of the
	result::

		 echo byte_format(45678, 2); // Returns 44.61 KB

	.. note:: The text generated by this function is found in the following
		language file: `language/<your_lang>/number_lang.php`