Master the Data types.
Also .htaccess allows support for Mod_rewrite, the stuff for parsing URL's differently. As you seen right now, live, the URL address states this thread is:
Code:
http://www.talkphp.com/general/2035-what-all-subjects-php.html
.E.G. - general/2035-what-all-subjects-php.html
Considering you can do that with vbSEO for the Search Engine to recognize the URL easily.
You can have Wildcard schemes with an HTTP String Specific, if I put that correctly. :]
Code:
( also if you want a wildcard Subdomain service, like most sites do as like Blogger.com, that has it's url's as such:
myblog.blogspot.com, that's probably coming this url query:
http://www.blogspot.com/?bget=myblog&ref=0 (usually I'd put this if 1 then assign this to the database >:D
If you catch my drift <end>);
By the way, you cannot just do a Wildcard Subdomain, you must allow for it in the APACHE VirtualHosts.
By the way Wildcards are like this = "%foo%"
Usually considering sql, this can be made for making Search Engines :D
As such:
$sql = mysql_query("SELECT * FROM table LIKE = '%$row%'");
etc etc
now enough..
By the way, for PHP & XML, just use SimpleXML, it makes it simple for PHP to actually interact with XML, or probably the only way. >.< I know you could try the YouTube API for this
PHP: SimpleXML - Manual <- here
Let us get one thing straight, Cookies & Sessions are basically the same thing.
User Authentication and User Registration eh? As with Cookies & Sessions you assign the session to the user coming from the database, that's about all I know of the subject. And then you can use setcookie to increase the session.
Sending email?
Just use
mail() or for (Some what)
imap_mail()
What about Arrays?
Though you can familiarize yourself with them with the Keys and Values, that's about it besides manipulating them using the functions and how some functions turn variables into arrays such as
Explode() function
I've never really touched with Sockets, but I can tell you, you can use them for grabbing information from a remote server, but so can cURL.
They have their own page for SQL injections, simply
mysql_real_escape_string does the trick
UPDATE: well it does help with SQL injections, but I'm sure someone has already gone beyond escaping strings. Though I've never SQL injected before so.. I am not totally knowing about this :S or XSS attacks.. >.<
What do you mean by PHP & Mysql interacting with the Browser? Sounds to me like Javascript(AJAX) :/.. What are you trying to accomplish?
I would try to grasp the GD Library, so you could add that to your list.
Classes are brilliant in their own way!
I love Classes! They make everything easier for me!
But instead of hearing me blab, I think you should go to php.net and check about all the means of classes/objects.
In the end as said above for classes, PHP.NET is your place for anything and everything about PHP. :]
Talkphp is LIKE Winston Wolf ( Pulp Fiction ref. ), he solves problems.. Hehe