Xes
73154ae174
Fuente: https://github.com/chamilo/chamilo-lms/releases/download/v1.11.40/chamilo-1.11.40.zip sha256: 1cf4bf2cc7bae1ef1a1eff643235db1d552f78ddf4b6dd1e2d2dac9868679439 Snapshot independiente (rama huerfana); diffable vs 1.11.38. vendor incluido.
66 lines
1.6 KiB
PHP
66 lines
1.6 KiB
PHP
<?php
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namespace Sabre\VObject;
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/**
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* Useful utilities for working with various strings.
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*
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* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
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* @author Evert Pot (http://evertpot.com/)
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* @license http://sabre.io/license/ Modified BSD License
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*/
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class StringUtil {
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/**
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* Returns true or false depending on if a string is valid UTF-8
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*
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* @param string $str
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* @return bool
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*/
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static public function isUTF8($str) {
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// Control characters
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if (preg_match('%[\x00-\x08\x0B-\x0C\x0E\x0F]%', $str)) {
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return false;
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}
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return (bool)preg_match('%%u', $str);
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}
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/**
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* This method tries its best to convert the input string to UTF-8.
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*
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* Currently only ISO-5991-1 input and UTF-8 input is supported, but this
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* may be expanded upon if we receive other examples.
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*
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* @param string $str
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* @return string
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*/
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static public function convertToUTF8($str) {
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$encoding = mb_detect_encoding($str , array('UTF-8','ISO-8859-1', 'WINDOWS-1252'), true);
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switch($encoding) {
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case 'ISO-8859-1' :
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$newStr = utf8_encode($str);
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break;
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/* Unreachable code. Not sure yet how we can improve this
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* situation.
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case 'WINDOWS-1252' :
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$newStr = iconv('cp1252', 'UTF-8', $str);
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break;
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*/
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default :
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$newStr = $str;
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}
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// Removing any control characters
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return (preg_replace('%(?:[\x00-\x08\x0B-\x0C\x0E-\x1F\x7F])%', '', $newStr));
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}
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}
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