mysql-real-escape-string

I do understand that the prepared statements is the ultimate way to seek protection against the SQL injection. However, they provide coverage in a limited fashion; for example, in cases where I let the user to decide how the order by operation to be ( i.e, is it ASC or DESC? etc ), I get no coverage there with the prepared statements. I understand that I can map the user input to a pre-defined white list for that. But, this is only possible when a whitelist can be created or guessed thoroughly beforehand. For example, in the cases I mention above ( the ASC, or DESC ), this can easily be mapped

So, I'm getting this warning when using mysql_real_escape_string Warning: mysql_real_escape_string() [function.mysql-real-escape-string]: Access denied for user 'username'@'localhost' (using password: NO) in /home/path/php/functions.php on line 11 The rest of the site works fine, connects to the DB and all, but I get an error when using this function. It works completely fine on my localhost testing server. Any ideas? I use aforementioned function in my own homebrew string sanitation function: function sani($string){ $string = strip_tags($string); $string = htmlspecialchars($string); $string =

I have one table named tags and it contain entry which is as below. ID Name Created Date 10 limit\'s 2013-06-27 05:18:35 Now i want to search for limit's using query but could not search record. For what i have tried. 'SELECT id FROM tags AS Tag WHERE name = "%'. urlencode($adTag) .'%" LIMIT 0,1' 'SELECT id FROM tags AS Tag WHERE name LIKE "%'. htmlspecialchars($adTag) .'%" LIMIT 0,1' 'SELECT * FROM tags AS Tag WHERE name LIKE "%'. $adTag .'%" OR REPLACE(name,'''','') LIKE "%'. $adTag .'%"' 'SELECT id FROM tags AS Tag WHERE name LIKE "%'. mysql_real_escape_string( stripslashes($adTag)) .'%"

Should I use the mysql_real_escape_string() function in my MySQL queries for $_SESSION variables? Theoretically, the $_SESSION variables can't be modified by the end-user unlike $_GET or $_POST variables right? Thanks :) Regardless of whether the user can modify the data, you probably want to escape it anyway in case you ever need the data to contain characters that would break the SQL (quotes, etc). Better yet, use bound parameters and you won't have to worry about it. Do not escape/quote/encode text until you're at the point where you need it. Internal representations should be as "raw" as

I've made a simple search-script in PHP that searches a mySQL database and outputs the result. How this works is like this: User searches for "jack's" through a search-form. My PHP-script GET s this search, and sanitizes it. Then the script, with the use of SELECT and LIKE , gets the results. The script then outputs the result to the user. Lastly, the script tells the user that "jack's returned x results." with the help of escaping. What I would like to ask is, am I doing it right? This is how I sanitize before SELECTING from the database: if(isset($_GET['q'])){ if(strlen(trim($_GET['q'])) >=

This question already has an answer here: PHP Error: Mysqli_real_escape_string() expects exactly 2 parameters, 1 given 5 answers I received this error when I run my code. Error: Warning: mysqli_real_escape_string() expects exactly 2 parameters, 1 given in C:\wamp\www\SearchEngine\search.php on line 11 Code: <?php //php code goes here include 'connect.php'; // for database connection include 'script_suggestion.php'; include 'script_close_suggestion_box.php'; $query = $_GET['q']; // query $button = $_GET ['submit']; if (isset($_GET['page'])) { $page_number = (int)$_GET['page']; $page_number =