Posted by Pedro Graca on 12/29/05 14:17

correo@ironcito.com wrote:
> $string = preg_replace('/[^a-z\d\s]/i', '_', $string);
>
> replaces an accented letter with two underscores instead of one, when
> the submitting page is in UTF8 ($string comes from a GET form). It
> works well when the submitting page is encoded in ISO-8859-1 or with
> other characters such as an ampersand or whatever. Any ideas why? TIA

Because you didn't specify that you want pattern strings treated as
UTF-8. Use the `u` modifier

preg_replace('//u', ...)

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