Databases
StackOverflow2013
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PO
 

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    <p>Though you don't specify the error you're receiving, I'm guessing that it has to do with not-escaping the quotes in your query, specifically (but not limited to), the <code>comment</code> column.</p> <p>For example, the column in your sample is:</p> <blockquote> <p>Go to class. He doesn't require it but it will make the difference between an A or a B. It's very difficult to do anything without being in class. He gives all the answers you need so long as you show up. He's a very good teacher and I would recommend him to someone else</p> </blockquote> <p>This text includes several single-quotes, which will break your SQL query and give you an error.</p> <p>You're using <a href="http://php.net/htmlentities" rel="nofollow"><code>htmlentities</code></a> on each column's input, however, this does not prevent SQL injection; and, by default, <code>htmlentities</code> also doesn't convert single-quotes.</p> <p>I don't know what MySQL library your database class is implementing, but you may want to try using the library's escaping functions.</p> <p>For instance, if you're using the older <code>mysql_</code> functions, use <a href="http://php.net/mysql_real_escape_string" rel="nofollow"><code>mysql_real_escape_string()</code></a> instead of <code>htmlentities()</code> for each value. On the other hand, if you're using the more-recommended <a href="http://php.net/manual/en/book.mysqli.php" rel="nofollow">MySQLi</a> or <a href="http://php.net/manual/en/book.pdo.php" rel="nofollow">PDO</a> classes, convert your query to be a prepared statement instead.</p>
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    1. POPhp Query into database Fail?
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    1. USnewfurniturey
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    1. CODo you know how I can protect myself from this ?
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    2. CO@user1902588 In 100% seriousness, do not attempt to write your own sanitization function. Each MySQL library available through PHP has a built-in method that sanitizes user-input, I highly recommend using those (it will also save you a lot of work). I can point you in the direction regarding "which functions" and even give you sample-code, just let me know which library you're using (MySQL, MySQLi, PDO, etc).
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    3. COmyphpadmin is what I'am using
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