[PHP]Some help needed with php

[Skyrim]

Hi.
I have a question, so, i have tbl_guild and i'm adding a guild to it with php help, so when adding a guild i input characters name in input field and when proceeding i need script to check if user exists in tbl_users and NOT exist already in tbl_guild and if so proceed further with my script.
I'm new to php so i would appreciate some help here how to solve this problem.
I had a few ideas how to do so:

//Checking name in users is exists
$checkusername = mssql_query("SELECT name FROM tbl_users where name='$_POST[name]'");
$ccheckusername2 = mssql_fetch_array(checkusername)

//Checking name in _tblguild
$checkgname = mssql_query("SELECT name FROM tbl_guild where name='$_POST[name]'");
$checkgname2 = mssql_fetch_array($checkgname)

So how to put this in if statement together , if possible.

if ($checkgname2== ).....

And after that my mind blows
Thanks!

 

[me2me]

if (mysqli_num_rows(mysqli_query($link, "SELECT name FROM tbl_users where name='$_POST[name]'"))>=1) 
	{
		if((mysqli_num_rows(mysqli_query($link, "SELECT name FROM tbl_guild where name='$_POST[name]''"))===0)
			{
			// add guild operations...
			}   
		else
			{ 
			echo 'Guild already exist!';
			}
	}
else
	{
	echo "No User found!";
	}

In this example I used the row_count function of mysqli to count the results number in order to check if there is already a user with that name and if so, check if there is a guild with that name in order to create one that doesn't exist inside the database.

almost forgot, use some input data sanitization because nowdays there are alot of defacements using the sql inject exploit.

 

[Dave]

He's using MSSQL (mssql_*), you can't just switch to MySQL (mysqli_*).
Better would be to use SQLSRV

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