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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Format helper class.
*
* $Id$
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class format_Core {
/**
* Formats a phone number according to the specified format.
*
* @param string phone number
* @param string format string
* @return string
*/
public static function phone($number, $format = '3-3-4')
{
// Get rid of all non-digit characters in number string
$number_clean = preg_replace('/\D+/', '', (string) $number);
// Array of digits we need for a valid format
$format_parts = preg_split('/[^1-9][^0-9]*/', $format, -1, PREG_SPLIT_NO_EMPTY);
// Number must match digit count of a valid format
if (strlen($number_clean) !== array_sum($format_parts))
return $number;
// Build regex
$regex = '(\d{'.implode('})(\d{', $format_parts).'})';
// Build replace string
for ($i = 1, $c = count($format_parts); $i <= $c; $i++)
{
$format = preg_replace('/(?<!\$)[1-9][0-9]*/', '\$'.$i, $format, 1);
}
// Hocus pocus!
return preg_replace('/^'.$regex.'$/', $format, $number_clean);
}
/**
* Formats a URL to contain a protocol at the beginning.
*
* @param string possibly incomplete URL
* @return string
*/
public static function url($str = '')
{
// Clear protocol-only strings like "http://"
if ($str === '' OR substr($str, -3) === '://')
return '';
// If no protocol given, prepend "http://" by default
if (strpos($str, '://') === FALSE)
return 'http://'.$str;
// Return the original URL
return $str;
}
} // End format
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