You'll need to use a bit of conditional testing to build the appropriate sql string based on the submitted search terms. A simplified example shown below assumes the user can chooseto search on either firstname, lastname or both.

[PHP]$fname = $_POST['firstname'];
$lname = $_POST['lastname'];
$where = array();

if (isset( $fname ) && $fname!= "") {
$where[] = "(firstname LIKE '%$fname%')";
}
if (isset( $lname ) && $lname!= "") {
$where[] = "(lastname LIKE '%$lname%')";
}

$sql = ( "SELECT firstname, lastname, phonenr"
. "\nFROM tablename"
. (count( $where ) ? "\nWHERE " . implode( ' AND ', $where ) : "")
. "\nORDER BY lastname, firstname" );[/PHP]

I understand this concept but, I need only one search box.


I have attached some images, which will help you further to understand the concept...

Image 1 shows my tabel. Image 2 shows my table.... and the last image shows how I want to output...

And finally thanks very much for your help!!!!!!!!!

What are the search parameters you want to handle? Does the single search box mean that users will only search on firstname, or possibly firstname and lastname, or possibly lastname only? Or all three?

All of the three.

You can use

SELECT * FROM tablename WHERE CONCAT(firstname,lastname,phonenr) LIKE '%$search%'

btw, you should not play to hard with Like '%%', especially if you will have pager there (limit) as well as ability to sort by some fields (order by).
if you need - i can a short storty about doing that on big "for gamers" site.
briefly, try just to find some good book on database design, and read what can be done, what should be done and how

best regards

I will try my best and if I have further questions, I will post them here. Thanks for your help

Do not use LafinBoy's code, it opens up a security risk. You should always sanitize your incoming post data.

In mysql, you can use "FULL TEXT SEARCH" option. For this you have to add index on all of three fields First name, Last name and Phone.
After that you will use the query
OR

For detail about the full text search you can read
http://dev.mysql.com/doc/refman/4.1/...xt-search.html