mysql-real-escape-string

Is there an equivalent of PHP's mysql_real_escape_string() for Perl's DBI?

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问题 Could some tell me if there is a function which works the same as PHP's mysql_real_escape_string() for Perl from the DBI module? 回答1: You should use placeholders and bind values. 回答2: Don't. Escape. SQL. Don't. Quote. SQL. Use SQL placeholders/parameters ( ? ). The structure of the SQL statement and the data values represented by the placeholders are sent to the database completely separately, so (barring a bug in the database engine or the DBD module) there is absolutely no way that the data

PHP mysql_real_escape_string() -> stripslashes() leaving multiple slashes

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I'm having issues escaping/stripping strings with PHP/MySQL - there always seems to be redundant slashes. Let's take the following string as an example: <span style="text-decoration:underline;">underline</span> When adding a string to the database, I'm escaping it with mysql_real_escape_string() and the following gets stored in the database ( EDIT : checked this by querying the database directly with mysql app): <span style=\\\"text-decoration:underline;\\\">underline</span> When reading back out of the database, I'm passing the string through stripslashes() and the following is returned:

mysql_real_escape_string and single quote

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问题 I'm quite frustrated. I want to be able to insert into my database names with single quotes - for example, O'Connor. So, when inserting into the DB, I do: $lname = mysql_real_escape_string($_POST['lname']); And then I insert $lname into the DB. When it's in the DB, it appears as O\'Connor. So, if I were to recall that last name in my web application, I will have to use: $lname = stripslashes($r["lname"]); This all seems to work fine. However, I have a search function which will search for

Alternative to mysql_real_escape_string without connecting to DB

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I'd like to have a function behaving as mysql_real_escape_string without connecting to database as at times I need to do dry testing without DB connection. mysql_escape_string is deprecated and therefore is undesirable. Some of my findings: http://www.gamedev.net/community/forums/topic.asp?topic_id=448909 http://w3schools.invisionzone.com/index.php?showtopic=20064 It is impossible to safely escape a string without a DB connection. mysql_real_escape_string() and prepared statements need a connection to the database so that they can escape the string using the appropriate character set -

Why is PDO better for escaping MySQL queries/querystrings than mysql_real_escape_string?

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I've been told that I'd be better using PDO for MySQL escaping, rather than mysql_real_escape_string . Maybe I'm having a brain-dead day (or it may be the fact I'm by no stretch of the imagination a natural programmer, and I'm still very much at the newbie stage when it comes to PHP), but having checked out the PHP manual and read the entry on PDO , I'm still no clearer as to what PDO actually is and why it's better than using mysql_real_escape_string . This may be because I've not really got to grips with the complexities of OOP yet (I'm assuming it's something to do with OOP), but other than

Shortcomings of mysql_real_escape_string?

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I have seen a few people on here state that concatenating queries using mysql_real_escape_string will not protect you (entirely) from SQL injection attacks. However, I am yet to see an example of input that illustrates an attack that mysql_real_escape_string would not protect you from. The majority of examples forget that mysql_query is limited to one query and use mysql_real_escape_string incorrectly. The only example I can think of is the following: mysql_query('DELETE FROM users WHERE user_id = '.mysql_real_escape_string($input)); This would not protect you from the following input: 5 OR 1

Alternative to mysql_real_escape_string without connecting to DB

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问题 I\'d like to have a function behaving as mysql_real_escape_string without connecting to database as at times I need to do dry testing without DB connection. mysql_escape_string is deprecated and therefore is undesirable. Some of my findings: http://www.gamedev.net/community/forums/topic.asp?topic_id=448909 http://w3schools.invisionzone.com/index.php?showtopic=20064 回答1: It is impossible to safely escape a string without a DB connection. mysql_real_escape_string() and prepared statements need

Why is PDO better for escaping MySQL queries/querystrings than mysql_real_escape_string?

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问题 I\'ve been told that I\'d be better using PDO for MySQL escaping, rather than mysql_real_escape_string . Maybe I\'m having a brain-dead day (or it may be the fact I\'m by no stretch of the imagination a natural programmer, and I\'m still very much at the newbie stage when it comes to PHP), but having checked out the PHP manual and read the entry on PDO, I\'m still no clearer as to what PDO actually is and why it\'s better than using mysql_real_escape_string . This may be because I\'ve not