Re: search in serialized string

By serialized I mean using serialize(). This system was not develop by me, I'am doing some modifications in it. When the user chooses a language and his skill in it, thi sinformation is stored in array, passed to serialize() and then stored in DB. This is the problem, now how can I search this string correctly, since the string is serialized?? on 8/24/02 11:45 AM, DL Neil at PHPml@DandE.HomeChoice.co.uk wrote: > Hi Rodrigo, > >> I have a form to post resumes. In one parte the user have a option to > choose >> up to 5 languages and his knowledge in it. example : english: basic > advanced >> .... >> My problem is that was stored serialized in the BD and now I need to do a >> search by language and knowledge. How can I do this. I've tried everything >> unsuccessfully. example: search english advanced. If the user have english >> basic and another advanced he/her appear in the search. > > > Is it my imagination or have we seen this question posted to the list > numerous times? > > Can we assume a "BD" means db/database? > What do you mean by "serialised"? > > If I speak English very well and can managed basic greetings etc in Spanish > would you enter both of my (supposed) language skills in one field or would > each language appear in its own field/separate rows? > > If the table is properly designed/normalised, ie each language and level of > skill is in its own field, then why can't you do something like: > > ...WHERE field LIKE "%english%" AND field LIKE "%advanced%" > > However I would think about having a field for language-name accompanied by > another field for skill-level. This would get you away from those wild-cards > and into faster queries that can use indexes, eg > > ...WHERE ( language = "english" ) AND ( level = "advanced" ) --or even > "A" > for advanced > > Perhaps if you gave us some examples of what you want to happen, and the > code you are currently using, we could offer more specific information - > repeating an unsuccessful question invites repetition of the non-answer! > > Regards, > =dn > --