Test All Characters In A String

[The Little Guy]

I am using the code (at the bottom) to test some strings for non-US characters, the following code is returning:

 

int(0)
int(0)
int(0)

 

The result I am looking for is the first and thrid dump should be 0 and the second dump should be 1 like so:

 

int(0)
int(1)
int(0)

 

Here is my test code:

 

<?php
$str[] = '漢語';
$str[] = 'abc123';
$str[] = '漢語abc123';
foreach($str as $s){
    var_dump(preg_match("/^\p{Common}*$/u", $s, $matches));
}

 

What can I do to get the results of the second block?

[The Little Guy]

I think I got it! Here is the code I came up with (suggestions?):

 

preg_match("/^[\p{Latin}\p{Nd}\p{Common}]*$/u", $str);

[requinix]

Since \p{Common} includes "[characters] that are not part of an identified script" you probably don't want to include that.

 

Otherwise, unless you really want Unicode, [a-z0-9]/i could be just fine.