/**
* Create a web friendly URL slug from a string.
*
* Although supported, transliteration is discouraged because
* 1) most web browsers support UTF-8 characters in URLs
* 2) transliteration causes a loss of information
*
* @author Sean Murphy <*****@*****.**>
* @copyright Copyright 2012 Sean Murphy. All rights reserved.
* @license http://creativecommons.org/publicdomain/zero/1.0/
*
* @param string $str
* @param array $options
*
* @return string
*/
public static function build($str, $options = array())
{
$str = mb_convert_encoding((string) $str, 'UTF-8', mb_list_encodings());
$defaults = array('delimiter' => '-', 'limit' => null, 'lowercase' => true, 'replacements' => array(), 'transliterate' => true);
// Merge options
$options = array_merge($defaults, $options);
// Make custom replacements
$str = StringFilter::customReplace($str, $options['replacements']);
// Transliterate characters to ASCII
if ($options['transliterate']) {
$str = StringTransformer::transliterateToASCII($str);
}
// Replace non-alphanumeric characters with our delimiter
$str = preg_replace('/[^\\p{L}\\p{Nd}]+/u', $options['delimiter'], $str);
// Remove duplicate delimiters
$str = preg_replace('/(' . preg_quote($options['delimiter'], '/') . '){2,}/', '$1', $str);
// Truncate slug to max. characters
$str = mb_substr($str, 0, $options['limit'] ? $options['limit'] : mb_strlen($str, 'UTF-8'), 'UTF-8');
// Remove delimiter from ends
$str = trim($str, $options['delimiter']);
return $options['lowercase'] ? StringTransformer::toLowercase($str) : $str;
}
