vb.org Archive - validating username

vb.org Archive (https://vborg.vbsupport.ru/index.php)

- vB3 Programming Discussions (https://vborg.vbsupport.ru/forumdisplay.php?f=15)

- - validating username (https://vborg.vbsupport.ru/showthread.php?t=188607)

xXLeighXx2008

08-20-2008 12:44 AM

validating username

We are creating our own page that is NOT vb powered and we are linking it to a mysql database OUTSIDE vb.

We want to validate our registration page so it does not allow usernames with special characters.. Remember, this is NOT vb powered and will not create the user in vb.

We have been recommended to use the eregi() function but we can't find any tutorials on how to acheive this.

This is simply for a custom php file

Can anyone help?

MoT3rror

08-20-2008 12:53 AM

PHP Code:


		
			
if(preg_match('^((?!&#\d+;)[\x20-\x7E])+$', $username'))
{
//username is ASCII characters from 32-127
}
else
{
//username is not valided
}

You can find more patterns here.

xXLeighXx2008

08-20-2008 01:05 AM

We are using the following code and its not working for us.

PHP Code:


		
			
$username = $_POST['username'];
            if(!preg_match('^((?!&#\d+;) [\x20-\x7E])+$', $username)) {
                echo ('That is not a valid username.');
            }
            else {
                die();
            }

MoT3rror

08-20-2008 02:11 AM

Is there any error or what is happening?

Opserty

08-20-2008 08:03 AM

I see a " " (space) before the opening bracket ([) in the regex (in your code), that wasn't in the code given in post #2.

xXLeighXx2008

08-20-2008 10:57 AM

That was my fault when I copied it over, as it was pasted over MSN messenger and it generated a emoticon.

That wasn't what was pasted into the php file.

All times are GMT. The time now is 02:46 PM.

X vBulletin 3.8.12 by vBS Debug Information
Page Generation 0.00974 seconds Memory Usage 1,724KB Queries Executed 10 (?)
More Information
Template Usage: (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (2)bbcode_php_printable (1)footer (1)gobutton (1)header (1)headinclude (6)option (1)post_thanks_navbar_search (1)printthread (6)printthreadbit (1)spacer_close (1)spacer_open Phrase Groups Available: global postbit showthread	Included Files: ./printthread.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/class_bbcode_alt.php ./includes/class_bbcode.php ./includes/functions_bigthree.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete printthread_start bbcode_fetch_tags bbcode_create bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete printthread_post printthread_complete
Messages: