/usr/share/php/Sabre/VObject/StringUtil.php is in php-horde-dav 1.0.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | <?php
namespace Sabre\VObject;
/**
* Useful utilities for working with various strings.
*
* @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
* @author Evert Pot (http://evertpot.com/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
class StringUtil {
/**
* Returns true or false depending on if a string is valid UTF-8
*
* @param string $str
* @return bool
*/
static function isUTF8($str) {
// First check.. mb_check_encoding
if (!mb_check_encoding($str, 'UTF-8')) {
return false;
}
// Control characters
if (preg_match('%(?:[\x00-\x08\x0B-\x0C\x0E\x0F])%', $str)) {
return false;
}
return true;
}
/**
* 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 $str
* @return string
*/
static function convertToUTF8($str) {
$encoding = mb_detect_encoding($str , array('UTF-8','ISO-8859-1'), true);
if ($encoding === 'ISO-8859-1') {
$newStr = utf8_encode($str);
} else {
$newStr = $str;
}
// Removing any control characters
return (preg_replace('%(?:[\x00-\x08\x0B-\x0C\x0E\x0F])%', '', $newStr));
}
}
|