Strange error "Compilation failed: POSIX..."

[astur]

I get this error when checking a string for an email address pattern

Warning: Compilation failed: POSIX named classes are supported only within a class at offset 21 in C:\WEB\forum\shomsg.php on line 121

This is the code:

$msg=$row[5];

preg_replace("#(\w|.)+?@(\w|.)+?.[:alpha:]{2,4}?#is", "",$msg);

print $msg;

if I comment // the preg_replace line it works fine. Any hints??

[HalfaBee]

At a guess it doesn't like :alpha: try a-z instead.

HalfaBee

[Weedpacket]

Or put it in a class; i.e., [[:alpha:]]

[astur]

I tried the a-z instead of :alfa: and it doesnt complaint! However the code has no effect and the email addy is still displayed 😕

I found over the internet some other functions for this purpose and none of them works:

I will paste them, they might be helpful for someone.

preg_replace("#(\w|.)+?@(\w|.)+?.[:a-z:]{2,4}?#is","#",$message);

eregi_replace('^{([.a-z0-9-]+[.a-z0-9-])(@|AT)(([a-z0-9-]+.)([a-z0-9-]+)((.|DOT)[a-z]{2,3}))$',"#",$message);}

eregi_replace( "^{([_.0-9a-z-]+)@([0-9a-z][0-9a-z-]+).([a-z]{2,6})$",} '\1 at \2 dot \3',$message);