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

Help: calling function
Hi,
Is it possible to call a php function on page close?
If yes, could you explain how and whe

PHP Display Telephone Number On Referrer
I have used the php below to show a different telephone number in the header of the site depending u

Where is my php.ini???
Hi

First off - apologies - i'm not a coder so this may sound very amateur.

I'm having

Interpret Order
Hello all,

I'm wondering if I have this:

Code: $switch = array(
'one' =>

Check if another session of the page is running?
I want to keep people from opening multiple tabs, or sessions of my Facebook app. Is it possible to

php redirecting
i wont open a new thread but i have a question about redirecting....
i wonder why my code doesnt

Open browser page depending on XML results
Hello,

I have some PHP code that sends webbased from data to an external url ( in the form of

Getting rid of quotes when printing data
Hi Guys, I use the filter_var FILTER_SANITIZE_STRING to filter the textarea input. The function esca

Do not allow posting of whitespace
Currently the script below works if the user does not type a name/message, but if i create a whitesp

Multidimensional array problems in $_POST
I'm having trouble with a three-dimensional $_POST array. It starts as a two-dimensional array on th