undefined variable & index, explain if possible

[Cooler75]

hello,
I have started writing my own PHP script not too long ago. My script runs great however when i use error_reporting(E_ALL) function to check error, i got tons of notices, and i was hoping to correct them.

these are some of the notices:

Notice: Undefined index: address in /home/workinghabit/public_html/ab/admin.php on line 597
Notice: Undefined variable: i in /home/workinghabit/public_html/ab/admin.php on line 623

And if you look at line 597:

 while ($a_row =mysql_fetch_array ($result) )
{
$a_row['title'] = stripslashes($a_row['title']);
$a_row['address'] = stripslashes($a_row['address']); // line 597
}

And this is line 623

$count = 0;
$query = "SELECT * FROM data_base WHERE pic_id = $a_row[id] LIMIT 1";
$output = mysql_query("$query",$link);
$i++; // this is line 623

I hope that somebody can help me with this problem.
thank you guys

[PHPThorsten]

You have to indicate the variables for removing these notices.

so, before you use $array['key'] the first time, you have to index it with someting like

$array['key'] = 'standardvalue';

[Cooler75]

Originally posted by PHPThorsten

$array['key'] = 'standardvalue'; [/B]

hi, thanks for your answer,
so you are saying i should have something like this?

$_GET['address'] = '$address';

I will try it out and let you know
thanks