[PHP] Serialised Data DBs
Hi, Is it necessary to perform addslashes() on serialised data before inserting it into a database? Thanks, Danny. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Serialised Data DBs
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. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
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. 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. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Serialised Data DBs
- 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. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re[2]: [PHP] Serialised Data DBs
Hi, Wednesday, July 31, 2002, 5:18:05 AM, you wrote: 1JWH Yes, it'd be really smart to. If any of the data in the serialized string 1JWH has a ' or in it, it could break your query. Or the user being able to 1JWH enter a ' or into the data could open you to SQL attacks. 1JWH You want to do addslashes() on the result of serialize(), not the content 1JWH going into it, too. PHP will introduct double quotes around any strings that 1JWH are serialized. These should be escaped or they could end up breaking your 1JWH query. 1JWH Note that you don't have to do stripslashes() on the serialized string when 1JWH you pull it out. 1JWH ---John Holmes... 1JWH - Original Message - 1JWH From: Danny Shepherd [EMAIL PROTECTED] 1JWH To: PHP-General [EMAIL PROTECTED] 1JWH Sent: Tuesday, July 30, 2002 2:56 PM 1JWH Subject: [PHP] Serialised Data DBs Hi, Is it necessary to perform addslashes() on serialised data before 1JWH inserting it into a database? Thanks, Danny. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Another trap to fall into is if you have magic quotes on you will need to run strip slashes on any GET or POST variables BEFORE you serialize them, otherwise addslashes will escape the escapes. -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
