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Direktori : /var/www/projetos/suporte.iigd.com.br/vendor/sabre/vobject/lib/ |
Current File : /var/www/projetos/suporte.iigd.com.br/vendor/sabre/vobject/lib/StringUtil.php |
<?php namespace Sabre\VObject; /** * Useful utilities for working with various strings. * * @copyright Copyright (C) fruux GmbH (https://fruux.com/) * @author Evert Pot (http://evertpot.com/) * @license http://sabre.io/license/ Modified BSD License */ class StringUtil { /** * Returns true or false depending on if a string is valid UTF-8. * * @param string $str * * @return bool */ public static function isUTF8($str) { // Control characters if (preg_match('%[\x00-\x08\x0B-\x0C\x0E\x0F]%', $str)) { return false; } return (bool) preg_match('%%u', $str); } /** * This method tries its best to convert the input string to UTF-8. * * Currently only ISO-5991-1 input and UTF-8 input is supported, but this * may be expanded upon if we receive other examples. * * @param string $str * * @return string */ public static function convertToUTF8($str) { if (!mb_check_encoding($str, 'UTF-8') && mb_check_encoding($str, 'ISO-8859-1')) { $str = mb_convert_encoding($str, 'UTF-8', 'ISO-8859-1'); } // Removing any control characters return preg_replace('%(?:[\x00-\x08\x0B-\x0C\x0E-\x1F\x7F])%', '', $str); } }