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

Why is the logic of this simple code not working?
Hey, I'm trying to determine if a table already exists in mysql, but doing a query first with mysql_

order by date not ID number help php
I am trying to orginize the following code to order by date not id number.
any help would be grea

Sql and php order list script problems
Hi im having a few problems with trying to get the coding right on a orders list ive done (or trying

help with this code please?
Hello,

I am trying to build a remote upload script for my image hosting site.

I am usi

How to read CSS message data
Hi,
I have a requirement here. When working as a Dev angel for multiple customers its really di

Loop column after 2 results
Hello All.

Here is what I have:

Client ID Company name Clien

Any meaningful project for a new C++ programmer?
I want to do some meaningful program, so I can help myself to learn

Assume I know the fol

Displaying pictures
i have worked my way through storing images in directory and storing the location in mySQL db.Now i

Is it a good practice to store user info. in sessions?
I am making a user class for my script which stores all the user information in sessions. It takes u

problem in program for counting no of chars using pointers
Hi all, I was trying to make a program which counts number of chars in a string using concpt of poin