Help me please how to solved it!

[WapAdda]

if(!ereg("[a-z]",$name)){return 9;}
$uname=ereg("[a-z,0-9,.-_]",$name); 

i use this code, but when user submit reg data the page come Deprecated : Function ereg() is deprecated in
how solved this problem?

[metulj]

if(!ereg("[a-z]",$name)){return 9;}
$uname=ereg("[a-z,0-9,.-_]",$name); 

i use this code, but when user submit reg data the page come Deprecated : Function ereg() is deprecated in
how solved this problem?

use

preg_match 

[WapAdda]

Ok, if i use

if(!preg_match("[a-z]",$name)){return 9;} 

it's correct?
if not! Plz explain how to use preg_match my code?

[metulj]

Ok, if i use

if(!preg_match("[a-z]",$name)){return 9;} 

it's correct?
if not! Plz explain how to use preg_match my code?

tutorials
examples

[subzero]

if(!ereg("[a-z]",$name)){return 9;}
$uname=ereg("[a-z,0-9,.-_]",$name); 

if(!preg_match("[a-z]",$name))
{
return 9;
}
$uname=preg_match("[a-z,0-9,.-_]",$name); 

[something else]

if(!preg_match("/[a-z]/",$name))
{
return 9;
}
preg_match("/[a-z,0-9,.-_]/",$name,$matches); 
$uname= $matches[0];