eregi problem

BloodSeaker · October 24th, 2004, 6:50 PM

Hi, I want to check a username on its input.

It may only contain numbers or a-z and the chars _ and -

My code for this is

if( !eregi("[a-zA-Z0-9_-]*", $username){
//print error
}

But this line of code always returns 1
If I enter the username fred (which is allowed) or if I enter fred+derb

All is allowed

Does anyone canhelp me on this one, cause I can't find the problem in here :s

**Dave** · October 26th, 2004, 12:37 AM

Quote:

Originally Posted by BloodSeaker

if( !eregi("[a-zA-Z0-9_-]*", $username){
//print error
}

The * means match 0 or more times. You should make it:
^[a-zA-Z0-9_-]+$

The + makes it match once or more, and the ^ sets the beginning of the line and the $ sets the end.

October 24th, 2004, 6:50 PM	#1 (permalink)
BloodSeaker Registered User Seasoned Poster Joined in Dec 2003 Hosted on Mango 85 posts Gave thanks: 0 Thanked 0 times	eregi problem Hi, I want to check a username on its input. It may only contain numbers or a-z and the chars _ and - My code for this is if( !eregi("[a-zA-Z0-9_-]*", $username){ //print error } But this line of code always returns 1 If I enter the username fred (which is allowed) or if I enter fred+derb All is allowed Does anyone canhelp me on this one, cause I can't find the problem in here :s __________________ SH57 server - zwammers.com Pass16 server - bloodseaker.be

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