I am trying to convert an old site to use mysqli rather than mysql. Hit a bit of a stumberling block with this section of code if (!function_exists("GetSQLValueString")) { function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") {   if (PHP_VERSION < 6) {     $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;   }   $theValue = function_exists("mysqli_real_escape_string") ? mysqli_real_escape_string($theValue) : mysqli_escape_string($theValue);   switch ($theType) {     case "text":       $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";       break;        case "long":     case "int":       $theValue = ($theValue != "") ? intval($theValue) : "NULL";       break;     case "double":       $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";       break;     case "date":       $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";       break;     case "defined":       $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;       break;   }   return $theValue; } } I keep getting the errors Warning:  mysqli_real_escape_string() expects exactly 2 parameters, 1 given in C:\xampplite\htdocs\games\test.php on line 15 Warning:  mysqli_real_escape_string() expects exactly 2 parameters, 1 given in C:\xampplite\htdocs\games\test.php on line 15 If I add a connection like this   $theValue = function_exists("mysqli_real_escape_string") ? mysqli_real_escape_string($games,$theValue) : mysqli_escape_string($games,$theValue); get the error Warning:  mysqli_real_escape_string() expects parameter 1 to be mysqli, null given in C:\xampplite\htdocs\games\test.php on line 12 Warning:  mysqli_real_escape_string() expects parameter 1 to be mysqli, null given in C:\xampplite\htdocs\games\test.php on line 12 Could someone please tell me what I am doing wrong Many thanks ... View more