我看到一個函數GetSQLValueString,我不知道它在處理什麼,有人可以給我一些想法嗎?
感謝您PHP - GetSQLValueString函數
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
$theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_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 $theValue;
}
功能這裏使用:
if (isset($_POST['username'])) {
$loginUsername=$_POST['username'];
$password=$_POST['password'];
$MM_fldUserAuthorization = "";
$MM_redirectLoginSuccess = "main.php";
$MM_redirectLoginFailed = "login_form.php";
$MM_redirecttoReferrer = false;
mysql_select_db($database_connection1, $connection1);
$LoginRS__query=sprintf("SELECT username, password FROM member WHERE username=%s AND password=%s",
GetSQLValueString($loginUsername, "text"), GetSQLValueString($password, "text"));
...
只是爲了信息,通過Dreamweaver會自動生成該功能將像登錄其現成的對象時表格等 – chris 2012-06-23 09:33:48