php form filter

[eerikk2]

I have a form for people to upload data to a mysql database. I am trying to include a filter to prevent them from uploading explicit terms into any of the spaces. I made the from which when submitted goes to insert.php file which processes all the data and uploads it. here is where i would like to preform the filter. maybe it would be something like

if($_POST ['name']=='@$#'){ header ('Location: example.com')} 

Although i have many form sections and many words i would like to filter out.

The goal is to, if one of the words is detected it would redirect the user to a page which displays why their data was not uploaded.

I've been trying to do this and here is what i've got so far.

//insert.php
include('words.php'); 
if ($_POST['$entered']=="$words"){
header( 'Location: http://example.com/' ) ;
exit;
}

//words.php
//%is used as wildcard in code
$words ="%@$#%||%@$#%||%@$#%||%@$#%||%@$#%||%@$#%||%@$#%";
$entered="Mname||Sname||Lsize||Wsize||Dsize";

[greatstar00]

you would need to use preg_match if u want to use wildcard characters

 

which it belong to regular expression

[eerikk2]

oh ok thank you very much

 

so my if would look like this?

if ($words){
header( 'Location: http://example.com/' ) ;
exit;
}

and the words.php would be this?

$words = preg_match("/@$#/i", "/@$#/i");