Checking a string for forbidden substrings

Preventing alerts for common 404 errors

[Jeremy_H]

I'm writing a custom 404 Error page that will also send me an email with the error details.

Now that a version of this page has been setup, I am getting lots of errors for documents like /_vti_bin/owssvr.dll and /MSOffice/cltreq.asp. I know these requests are harmless, and I shouldn't do anything about them.

However, I do want to stop receiving an email notification when these errors occur.

I want to add an if command that will check to see if $_SERVER["REQUEST_URI"] contains /_vti_bin/ or /MSOffice/.

Anybody have any ideas how I might be able to quickly and elegantly check if a string contains any forbidden substrings?

Thanks

[Little_G]

Hi,

Try:

<?php
$strings = array('/_vti_bin/', '/MSOffice/');
if(strpos($_SERVER["REQUEST_URI"], $strings) === false){
[send email, etc]
}
?>

Andrew

[Jeremy_H]

Little G, I've tried lots of variations on this, but it seems that it doesn't check the array. Have you, or anyone else, been able to successfully get this to work?

[Little_G]

Hi,

My mistake, try this:

<?php
$strings = array('/_vti_bin/', '/MSOffice/');
foreach($strings as $temp){
if(strpos($_SERVER["REQUEST_URI"], $temp)!== false){
die("don't send email");
}
}
[send email]
?>

I've swapped the if statement around so that if the forbidden strings are found then the script dies otherwise it sends the email, this is to stop it from sending more than one email.

Andrew