Joetheeskimo Posted February 20, 2005 Share Posted February 20, 2005 More spoonfeeding for you, matt-- ...or whoever else has sufficient knowledge to answer the following question... Let's say I'm defining a function. As I've already learned, if I want to access variables that have been defined outside of the function, I have to declare them global. I've created a function to extract all the rows in my users table: function user_fields() { $email = $row['email']; $location = $row['location']; etc. } If I call this function, user_fields(), within my other function, will I be able to use the variables defined within the user_fields() function as if they were local now, instead of global? They are, in a way, defined in the function itself now, aren't they? *Clenches his teeth and waits for the humiliating one-word answer* Link to comment Share on other sites More sharing options...
ZBomber Posted February 20, 2005 Share Posted February 20, 2005 I have no clue about anything PHP, but I think it's global. Link to comment Share on other sites More sharing options...
Joetheeskimo Posted February 20, 2005 Author Share Posted February 20, 2005 Originally posted by ZBomber I have no clue about anything PHP, but I think it's global. What is? Link to comment Share on other sites More sharing options...
matt-- Posted February 20, 2005 Share Posted February 20, 2005 No. You can, however, have the function return a value though with the return() statement. For example: return($row); Link to comment Share on other sites More sharing options...
Joetheeskimo Posted February 20, 2005 Author Share Posted February 20, 2005 Originally posted by matt-- No. You can have the function return a value though with the return() statement. For example: return($row); But the include() function can't? That's weird...I was under the impression the only difference between require() and include() was how they handled errors. :\\ Link to comment Share on other sites More sharing options...
ZBomber Posted February 20, 2005 Share Posted February 20, 2005 Originally posted by joetheeskimo5 What is? I dunno, I wasn't even aware there was more than one thing that could be global.... >_> Link to comment Share on other sites More sharing options...
matt-- Posted February 20, 2005 Share Posted February 20, 2005 Originally posted by joetheeskimo5 But the include() function can't? That's weird...I was under the impression the only difference between require() and include() was how they handled errors. :\ What does your question have to do with include/require? Using include/require produces essentially the same result as if you had pasted the contents of the included file into the first one. There is no value returned. Link to comment Share on other sites More sharing options...
Joetheeskimo Posted February 20, 2005 Author Share Posted February 20, 2005 Originally posted by matt-- What does your question have to do with include/require? Using include/require produces essentially the same result as if you had pasted the contents of the included file into the first one. There is no value returned. Sorry, I got return() mixed up with require(). Pretend I didn't say that... Anyway, do I then have to return every single variable defined in the user_fields() function? return $email; return $location; return $avatar; etc. Before I can use them as normal? Link to comment Share on other sites More sharing options...
matt-- Posted February 20, 2005 Share Posted February 20, 2005 You can only return one value per function, unless you use an array, which your ironically trying to get rid of in this function. Why not just use the $row array instead of having an extra function? Originally posted by joetheeskimo5 Sorry, I got return() mixed up with require(). Pretend I didn't say that... Anyway, do I then have to return every single variable defined in the user_fields() function? return $email; return $location; return $avatar; etc. Before I can use them as normal? Link to comment Share on other sites More sharing options...
ZBomber Posted February 20, 2005 Share Posted February 20, 2005 Kinda off-topic, should I learn PHP? I know HTML, and I want my site to be good, but what can PHP really do? And where should I learn it? Link to comment Share on other sites More sharing options...
Joetheeskimo Posted February 20, 2005 Author Share Posted February 20, 2005 Originally posted by ZBomber Kinda off-topic, should I learn PHP? I know HTML, and I want my site to be good, but what can PHP really do? And where should I learn it? YES. Nuff said. Buy a book and teach yourself, twas how I did it Anyway... Originally posted by matt-- You can only return one value per function, unless you use an array, which your ironically trying to get rid of in this function. Why not just use the $row array instead of having an extra function? Ah, good point... However, once I return the array, I want to use each of the variables in seperate ways...I assume once I've returned the array, I can do all that $location = $row['location']; $avatar = $row['avatar']; ... stuff? Link to comment Share on other sites More sharing options...
ZBomber Posted February 20, 2005 Share Posted February 20, 2005 What would I use it for? I know I can use include to add menus, headers, footers, etc, which is very useful, but what else can I use it for? Link to comment Share on other sites More sharing options...
Joetheeskimo Posted February 20, 2005 Author Share Posted February 20, 2005 Allowing members to join your site and be reg'ed instantly. Creating a points system on your site. Allowing user-submitted screenshots, files, and other submissions to be posted up immediately after they fill out a form. Designing your own site guestbook instead of turning to the crappy free ones out there. Allowing visitors to post comments on files and design your own smilie/BBCode system for the comments. The list goes on and on. You can also use it for the simpler, more practical stuff, like displaying certain HTML or plugins depending on what browser the visitor is using or what plugins he has. Once you get a book on PHP (price range $10-$25) you'll see how many more capabilites it has. EDIT: Also, a lot of the things above depend on a database, but non-database PHP can do useful things like making forms work to e-mail you or something. Link to comment Share on other sites More sharing options...
matt-- Posted February 20, 2005 Share Posted February 20, 2005 Yes, you can use the values stored in an array as if they were separate variables. Originally posted by ZBomber What would I use it for? I know I can use include to add menus, headers, footers, etc, which is very useful, but what else can I use it for? Mostly for coding web applications of some type. Link to comment Share on other sites More sharing options...
Joetheeskimo Posted February 20, 2005 Author Share Posted February 20, 2005 Originally posted by matt-- Yes, you can use the values stored in an array as if they were separate variables. Thanks a ton, man. I think that's just about all the questions I have. *Prints out copy of thread* Link to comment Share on other sites More sharing options...
matt-- Posted February 21, 2005 Share Posted February 21, 2005 Originally posted by joetheeskimo5 Thanks a ton, man. I think that's just about all the questions I have. *Prints out copy of thread* Anytime. If you need any more help, feel free to post, pm, or msg me on irc. Link to comment Share on other sites More sharing options...
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