| | |
| | | |
| | | |
| | | /** |
| | | * check if a utf8 string is valid |
| | | * |
| | | * @access public |
| | | * @param string $string the string to check |
| | | * @return bool true if it is valid utf8, false otherwise |
| | | */ |
| | | private function check_utf8($str) { |
| | | $len = strlen($str); |
| | | for($i = 0; $i < $len; $i++){ |
| | | $c = ord($str[$i]); |
| | | if ($c > 128) { |
| | | if (($c > 247)) return false; |
| | | elseif ($c > 239) $bytes = 4; |
| | | elseif ($c > 223) $bytes = 3; |
| | | elseif ($c > 191) $bytes = 2; |
| | | else return false; |
| | | if (($i + $bytes) > $len) return false; |
| | | while ($bytes > 1) { |
| | | $i++; |
| | | $b = ord($str[$i]); |
| | | if ($b < 128 || $b > 191) return false; |
| | | $bytes--; |
| | | } |
| | | } |
| | | } |
| | | return true; |
| | | } // end of check_utf8 |
| | | |
| | | /** |
| | | * Escape a string for usage in a query |
| | | * |
| | | * @access public |
| | |
| | | $sString = ''; |
| | | } |
| | | |
| | | /*$cur_encoding = mb_detect_encoding($sString); |
| | | $cur_encoding = mb_detect_encoding($sString); |
| | | if($cur_encoding != "UTF-8") { |
| | | if($cur_encoding != 'ASCII') { |
| | | $app->log('String ' . substr($sString, 0, 25) . '... is ' . $cur_encoding . '.', LOGLEVEL_WARN); |
| | | $app->log('String ' . substr($sString, 0, 25) . '... is ' . $cur_encoding . '.', LOGLEVEL_INFO); |
| | | if($cur_encoding) $sString = mb_convert_encoding($sString, 'UTF-8', $cur_encoding); |
| | | else $sString = mb_convert_encoding($sString, 'UTF-8'); |
| | | } |
| | | } elseif(!PXBase::check_utf8($sString)) { |
| | | } elseif(!$this->check_utf8($sString)) { |
| | | $sString = utf8_encode($sString); |
| | | }*/ |
| | | } |
| | | |
| | | if($this->_iConnId) return mysqli_real_escape_string($this->_iConnId, $sString); |
| | | else return addslashes($sString); |