Question

I’m new to PHP+MySQL programming

I want to SELCET data using tow constrain at once,

the cons1 is

Tid=user02 and Fid=user01

and cons2 is

Tid=user01 and Fid=user02

the data I want to output is something like:

$result1 = mysql_query("SELECT * FROM myTable WHERE Tid='user02' AND Fid='user01');

+

$result2 = mysql_query("SELECT * FROM myTable WHERE Tid='user01' AND Fid='user02');

= what I want

can it be done in single line?

or can make a result which stored $result1 and $result2

thanks for taking time reading my question

Answer 1

You can OR the two conditions resulting in a single query:

SELECT * FROM chat 
   WHERE (Tid='user02' AND Fid='user01') 
      OR (Tid='user01' AND Fid='user02')