Find occurences of unicode characters in string

Posted on 16th Feb 2014 07:03 pm by admin

I need to prohibit filenames with everything but English characters and numbers but regexp and string function don't seem to work because they consider the Greek alphabet letters as part of the A-Z a-z sequence. Here's what I've tried:

Quote:if (strspn($str, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789") != strlen($str))
{
echo 'invalid filename';
}

Quote:if (!preg_match("/^([-a-z0-9])+$/i", $str))
{
echo 'invalid filename';
}

Your Answer:

Login to answer

Other forums

PHP & Images [Resize, Crop, Save]
Hey! Well I have a little dilema, hoping I could find some guidance.

I have a CMS and on the

Data Function is Its Not working IN IE8
This is my first time to use formums. I hope i can get solution for this problem. view plaincopy to

Showing selected item at top of list
Hi,

I've got a list of names which i am fetching from database like this:
$qry = db_query

FILTER_CALLBACK -- Files?
Hi All,

I'm using the php filter functions to validate my form data. For custom filters, I'm

reading xml faster than DB call?
I am trying to optimize a high traffic website, and I enabled a feature where there are three photos

distinct rows
Hi
version 10.2.0.3

I have a query output something like the following

ID

regex for quoted text within a string
I am still getting the hang of regex expressions, but I cant seem to figure out how I would escape q

Save User Inputs while javascript reloading!
hi..
i have written a PHP code in which i reload the page when user selects a value in dropdown..

mr8m - reverse document
Friends,

I'm trying to reverse a document held by MIRO, but it reports the message balan

Please help - should be a simple fix.. driving me nuts
Everything seemed to be working fine. I have a table, it alphabetically lists a bunch of cities and