questlab/app/Utils.inc

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<?php
/**
* The Legend of Z
*
* @author Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
* @copyright 2014 Heinrich-Heine-Universität Düsseldorf
* @license http://www.gnu.org/licenses/gpl.html
* @link https://bitbucket.org/coderkun/the-legend-of-z
*/
namespace hhu\z;
/**
* Class for implementing utility methods.
*
* @author Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
*/
class Utils
{
/**
* Mask HTML-chars for save output.
*
* @static
* @param string $string String to be masked
* @return string Masked string
*/
static function t($string)
{
return nl2br(htmlspecialchars($string));
}
/**
* htmlspecialchars with support for UTF-8.
*
* @static
* @param string $string String to be masked
* @return string Masked string
*/
public static function htmlspecialchars_utf8($string)
{
return htmlspecialchars($string, ENT_COMPAT, 'UTF-8');
}
/**
* Cut a string to the given length but only word boundaries.
*
* @static
* @param string $string String to cut
* @param int $length Length to cut string
* @param int $scope Maximum length to cut string regardless word boundaries
* @return string Cutted string
*/
public static function shortenString($string, $length, $scope)
{
// Determine length
$length = min($length, strlen($string));
// Look for word boundary
if(($pos = strpos($string, ' ', $length)) !== false)
{
// Check if boundary is outside of scope
if($pos > $length + $scope) {
$pos = strrpos(substr($string, 0, $pos), ' ');
}
}
else {
$pos = strlen($string);
}
// Cut string and return it
return substr($string, 0, $pos);
}
}
?>