Username only characters allowed !!

[Anon]

is there any function in php by which one can fixed a validation for character only username??

mean no body can submit any username which contains any symbols like ",*(^5%#@!" ans so on , mean the username should be in Alphabetical form.. is there any function available ??

Any Idea ??

Thanx
Tabish

[Anon]

yes, look at ereg() or eregi(). you could use

eregi"[a-zA-Z]", $string)

to check if the string holds other characters then a-z or A-Z. maybe is eregi_replace() also interesting for you too...

[Anon]

sorry,

ereg("[a-zA-Z]", $string)