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Naturist Boy Azov Films Antonavi

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SQL Injection Prevention

So the question I have, should the following code of my php be secure from SQL injection? I’ve never used mysqli with prepared statements and I’m having trouble seeing how they could protect from this.
$sql = “SELECT COUNT(*) FROM table1 WHERE user_id =? AND keyword =?”;
if(!$result = $mysqli->query($sql, array($_SESSION[‘user_id’], $_GET[‘keyword’]));
while($row = $result->fetch_object()) {
$data[] = $row;
$total = sizeof($data);

There are also other variables with the same issue. Using it through Ajax makes it harder to say if the variables are properly sanitized.
So should the query above be safe?


The answer is yes.
The only really weak link in your code is in the variable $row.
In PHP, you have to be careful of the variables you collect from the user, but you can ensure the code is safe by making sure the user inputs only safe values. This includes ensuring that the user input is sanitized and that users don’t supply the exact string you’re looking for.
To ensure that the user isn’t changing the number of “rows” being selected, you should ensure that the user supply a number, not a string. If you don’t know how many rows there should be, you can ask the user and get the number you want.
$sql = “SELECT COUNT(*) FROM table1 WHERE user_id =? AND keyword =?”;
$sql_params = array($_SESSION[‘user_id’], $_GET[‘keyword’]);
if(!$result = $mysqli->query($sql, $sql_params);
while($row = $result->fetch_object()) {
$data[] = $row;
$total = sizeof($data);

PHP has a lot of inbuilt security to prevent common things from happening. See the documentation for more info.

The Last American Hero

The Last American Hero is a 1941 American film directed by Lew Wallace. The film is a documentary about private