Disappearing selection variables

[Abapper]

As a complete beginner in PHP and just dabbling around for a volunteer library search option I try to do the following :

I have one database table holding all the books, and am able to search this and get a nicely filled table with results.

Two things at the moment however :

I lose the input from the

           <input type="text" name="niveau">

when I redirect the page to itself. Anyway of just refilling this box with what you just put in ?

I want to search on parts of titles, or authors, like :

"pet" will give me any title containing this string.

TIA for your answers.

[Mordecai]

Redirect like this:
header("Location: page.php?niveau=variable");

That is, unless, by "redirect," you mean sending a form, which you should use this:
echo("<input type=\"text\" name=\"niveau\" text=\"".$GET["niveau"]."\">");
$GET can be replaced with $_POST depending on how you sent the data.

[Abapper]

Thanks Mordecai, got me in the right direction. I am indeed posting the form.

changed the input to :
<input type=\"text\" name=\"niveau\" value=\"".$_POST["niveau"]."\">

and not it works.

Any input for the second question, searching for a string inside ie. a title field ?