[Solved] What is the purpose of $connect in mysqli_real_escape_string($connect, $username)? [closed]

Per the docs: Security: the default character set The character set must be set either at the server level, or with the API function mysqli_set_charset() for it to affect mysqli_real_escape_string(). See the concepts section on character sets for more information. And therein lies the reason for having the connection: how to escape your string depends … Read more

[Solved] MySQL INJECTION Solution

Reinventing the wheel and reinventing it the Wrong Way (TM). First of all, there are parametrized queries (available for PHP in MySQLi extension); if that’s not an option, there’s mysql_real_escape_string. This is the main issue – check for already available options before deciding to implement them on your own. Second, you are trying to call … Read more

[Solved] What’re the purposes of these special characters in SQL injection?

This value: admin’);# would terminate the SQL statement after the string “admin” and treat everything after as a comment. So this: SELECT ID, name, locale, lastlogin, gender, FROM USERS_TABLE WHERE (name=”$user” OR email=”$user”) AND pass=”$pass” essentially becomes this: SELECT ID, name, locale, lastlogin, gender, FROM USERS_TABLE WHERE (name=”admin”) A record is found and the system … Read more

[Solved] What is SQL injection? And what is it use and plese give me a some real time example Regards & Thanks Hareesh [closed]

User input that deliberately contains SQL code to do harmful things, and isn’t disabled or sanitized by the code. E.g., $who = $_GET[‘customer_id’]; … DELETE from records WHERE customer_id = ‘$who’ could be injected with something similar to customer_id=1234′ and 1=1 and ”=’, resulting in DELETE from records WHERE customer_id = ‘1234’ and 1=1 and … Read more

[Solved] Sql injections may be possible

It is difficult to ans your query without source code, but still try this: Try binding parameters which you pass in query instead of directly passing in it. for example: $query = UserMaster::model()->findAll(’email = :email ‘, array(‘:email’ => “[email protected]”)); Here email id is binded in an array, this will prevent sql injection to much extent. … Read more

[Solved] How can I avoid SQL injection in my code below? [duplicate]

As suggested, prepared statements are the best way to achieve good protection from SQL injection. Shortened Example You will need to add entries to fill in all columns you wish to insert. $email = $_POST[‘e-mail’]; $fn = $_POST[‘firstname’]; $ln = $_POST[‘lastname’]; if ($stmt = $mysqli->prepare(“INSERT INTO `newcartdb`.`orders`(Email,Firstname,Lastname) values(?,?,?)”) { $stmt->bind_param(“sss”, $email, $fn, $ln); “sss” – … Read more

[Solved] Mysql real escape [closed]

The problem is that you aren’t using it… Make this change. <?php $address = mysql_real_escape_string($_POST[‘bitcoinaddress’]); $btc = mysql_real_escape_string($_POST[‘btcamount’]); $phone = mysql_real_escape_string($_POST[‘phonenumber’]); $con = mysql_connect(“localhost”,”db user”,”password”); if (!$con) { die(‘Could not connect: ‘ . mysql_error()); } mysql_select_db(“db_name”, $con); $sql=”INSERT INTO `db_name`.`form` (`bitcoinaddress`, `btcamount`, `phonenumber`) VALUES (‘”.$address.”‘,'”.$btc.”‘,'”.$phone.”‘)”; if (!mysql_query($sql,$con)) { die(‘Error: ‘ . mysql_error()); } echo ($btc); … Read more