Re: [PHP] Serialised Data DBs

2002-07-30 Thread Rasmus Lerdorf

Yes, you would need to.  serialize() does not encode any of the variable
data.

-Rasmus

On Tue, 30 Jul 2002, Danny Shepherd wrote:

 Hi,

 Is it necessary to perform addslashes() on serialised data before inserting
 it into a database?

 Thanks,

 Danny.


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Re: [PHP] Serialised Data DBs

2002-07-30 Thread 1LT John W. Holmes

Yes, it'd be really smart to. If any of the data in the serialized string
has a ' or  in it, it could break your query. Or the user being able to
enter a ' or  into the data could open you to SQL attacks.

You want to do addslashes() on the result of serialize(), not the content
going into it, too. PHP will introduct double quotes around any strings that
are serialized. These should be escaped or they could end up breaking your
query.

Note that you don't have to do stripslashes() on the serialized string when
you pull it out.

---John Holmes...

- Original Message -
From: Danny Shepherd [EMAIL PROTECTED]
To: PHP-General [EMAIL PROTECTED]
Sent: Tuesday, July 30, 2002 2:56 PM
Subject: [PHP] Serialised Data  DBs


 Hi,

 Is it necessary to perform addslashes() on serialised data before
inserting
 it into a database?

 Thanks,

 Danny.


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 To unsubscribe, visit: http://www.php.net/unsub.php



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Re: [PHP] Serialised Data DBs

2002-07-30 Thread Danny Shepherd


- Original Message -
From: 1LT John W. Holmes [EMAIL PROTECTED]
To: Danny Shepherd [EMAIL PROTECTED]; PHP-General
[EMAIL PROTECTED]
Sent: Tuesday, July 30, 2002 8:18 PM
Subject: Re: [PHP] Serialised Data  DBs

 Yes, it'd be really smart to. If any of the data in the serialized string
 has a ' or  in it, it could break your query. Or the user being able to
 enter a ' or  into the data could open you to SQL attacks.

 You want to do addslashes() on the result of serialize(), not the content
 going into it, too. PHP will introduct double quotes around any strings
that
 are serialized. These should be escaped or they could end up breaking your
 query.
Yeah, the contents are already stripslashed.

 Note that you don't have to do stripslashes() on the serialized string
when
 you pull it out.

Cool, didn't realise that - would've been hard to track down later too!

Thanks,

Danny.


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