[SOLVED] "nick" to be a simple letters

[web_master]

hi,

 

Ive made a site where people can register. how can they use only simple letters for a "nick" (no é, á, ö or others)?

 

have You some script for that?

 

thnxs

 

 

[Lodius2000]

what you need is a regular expression combine with a preg function

 

if you want to make the user reenter the name until it contains only "simple letters" use

preg_match('/^[a-zA-Z]+$/i', $variable_contains_user_input)

combined with an if() statement, like

if(!preg_match('/^[a-zA-Z]+$/i', $variable_contains_user_input)){

    redisplay form and tell the user what is wrong

}

 

that is what I do

[LooieENG]

for letters only

 

<?php

if ( ctype_alpha($_POST['username']) )
{
// user has a name containing letters only
}

?>

 

and for letters and numbers

 

<?php

if ( ctype_alnum($_POST['username']) )
{
// user has a name containing letters and numbers only
}

?>

[web_master]

THANXS, ist work!