92 lines
2.1 KiB
PHP
92 lines
2.1 KiB
PHP
<?php
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/**
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* @package FrameworkOnFramework
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* @subpackage utils
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* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE.txt
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*/
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// Protect from unauthorized access
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defined('F0F_INCLUDED') or die;
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/**
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* Helper class with utilitarian functions concerning strings
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*
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* @package FrameworkOnFramework
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* @since 2.0
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*/
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abstract class F0FStringUtils
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{
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/**
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* Convert a string into a slug (alias), suitable for use in URLs. Please
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* note that transliteration suupport is rudimentary at this stage.
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*
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* @param string $value A string to convert to slug
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*
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* @return string The slug
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*/
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public static function toSlug($value)
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{
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// Remove any '-' from the string they will be used as concatonater
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$value = str_replace('-', ' ', $value);
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// Convert to ascii characters
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$value = self::toASCII($value);
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// Lowercase and trim
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$value = trim(strtolower($value));
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// Remove any duplicate whitespace, and ensure all characters are alphanumeric
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$value = preg_replace(array('/\s+/', '/[^A-Za-z0-9\-_]/'), array('-', ''), $value);
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// Limit length
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if (strlen($value) > 100)
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{
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$value = substr($value, 0, 100);
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}
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return $value;
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}
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/**
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* Convert common norhern European languages' letters into plain ASCII. This
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* is a rudimentary transliteration.
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*
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* @param string $value The value to convert to ASCII
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*
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* @return string The converted string
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*/
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public static function toASCII($value)
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{
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$string = htmlentities(utf8_decode($value), null, 'ISO-8859-1');
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$string = preg_replace(
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array('/ß/', '/&(..)lig;/', '/&([aouAOU])uml;/', '/&(.)[^;]*;/'), array('ss', "$1", "$1" . 'e', "$1"), $string
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);
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return $string;
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}
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/**
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* Convert a string to a boolean.
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*
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* @param string $string The string.
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*
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* @return boolean The converted string
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*/
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public static function toBool($string)
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{
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$string = trim((string) $string);
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if ($string == 'true')
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{
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return true;
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}
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if ($string == 'false')
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{
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return false;
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}
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return (bool) $string;
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}
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}
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