i dont understand the undefind index error in my code.can check for me?

[Sheau Wei]

This is the code the code that i try to run it as my search engine for my database. But i dont understand why i run a notice that undefind index. Can u help me ?

<form method="post" action="search. php">
<input type="text" name="search" size=25 maxlength=25>
<input type="Submit" name="Submit" value="Submit">
</form>
<?

//connect to server
mysql_pconnect( "localhost","ro ot","password") ;
//select the db
mysql_select_db ("school");
//get the results and store them in $result
$search=$_POST["search"];

$result = mysql_query ("SELECT * FROM class WHERE Name LIKE '%$search%'");
//run the while loop
while($r=mysql_ fetch_array($re sult))
{
//grab the result
$Name=$r["Name"];
//print it out
echo $Name;
echo "<br>";
}

?>

[bevort]

You get these warning in you error_log file, right?

PHP does not like undefined vars and indexes. You should get only something like [05-Oct-2006 12:56:33] PHP Notice: Undefined variable: uid in D:\htdocs
but the code works.

If you realy want to get rid of them you have to declare all the vars before using them even if they come from a $_POST or $_GET.

[Sheau Wei]

You get these warning in you error_log file, right?

PHP does not like undefined vars and indexes. You should get only something like [05-Oct-2006 12:56:33] PHP Notice: Undefined variable: uid in D:\htdocs
but the code works.

If you realy want to get rid of them you have to declare all the vars before using them even if they come from a $_POST or $_GET.

In the code that i had submit, i dont understand how to declare it , can u help me or give me an example? Thanks you

[ronverdonk]

On what statement did you get the 'undefined' error message?

Ronald :cool: