vreemde tekens

<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>

<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>

htmlspecialchars("ü");

htmlspecialchars("ü");

<?php
		$params = array();
 
		foreach ($items as $key => $value) {
			if(strstr($key, 'column|')) {
				$key = str_replace('column|', '', $key);
			//if($value != '')
			//{
				switch(gettype($value)) {
				  case 'integer':
				  case 'double':
				    $escape = $value;
				    break;
				  case 'string':
				    $escape = "'" . htmlspecialchars($value)  . "'";
				    break;
				  case 'NULL':
				    $escape = 'NULL';
				    break;
				  default:
				    continue;
				//}
			}
		$params[] = "{$key}={$escape}";
		}
		}

		$value_string = implode(',', $params);
		$where_string = $id;
		echo $sQuery = " UPDATE 
						{$table} 
					SET 
						$value_string 
					WHERE 
						id = {$where_string}";
  
		$rs = $this->conn->Execute($sQuery);
?>

<?php
		$params = array();
 
		foreach ($items as $key => $value) {
			if(strstr($key, 'column|')) {
				$key = str_replace('column|', '', $key);
			//if($value != '')
			//{
				switch(gettype($value)) {
				  case 'integer':
				  case 'double':
				    $escape = $value;
				    break;
				  case 'string':
				    $escape = "'" . htmlspecialchars($value)  . "'";
				    break;
				  case 'NULL':
				    $escape = 'NULL';
				    break;
				  default:
				    continue;
				//}
			}
		$params[] = "{$key}={$escape}";
		}
		}
 
		$value_string = implode(',', $params);
		$where_string = $id;
		echo $sQuery = " UPDATE 
						{$table} 
					SET 
						$value_string 
					WHERE 
						id = {$where_string}";
 
		$rs = $this->conn->Execute($sQuery);
?>