Regular Expression and other langauages

[saidbakr]

Hi,
When I want to check for a string that only contains letters, I wolud use this pattern inside ereg(),
^[a-z]+$
ok,
That's nice for only latin alphapat. What we can do if we want to use another alphapat, i.e Arabic or hebrow. Also what we can do if we want the string to be allow mix of them.?

[Astor]

Not the fastest method but make your own function: while each char of string check it to be between ord("first char") & ord("last char").

$i=0;
$safe="true";
for () {
if (ord(string[$i]) < ord("first char") or ord(string[$i]) > ord("last char") {
$safe=false;
}
}
... return $safe;

[mrhappiness]

$allowed = array('a','b');
$check = 'some text that is not valid';
$ok = strlen(str_replace($allowed, '', $check)) == 0;