On Tue, Aug 3, 2010 at 5:09 PM, Daniel Friesen
<[email protected]> wrote:
> Yup, though we might as well remember that not everyone has mb_
> functions installed.
if ( !function_exists( 'mb_strlen' ) ) {
/**
* Fallback implementation of mb_strlen, hardcoded to UTF-8.
* @param string $str
* @param string $enc optional encoding; ignored
* @return int
*/
function mb_strlen( $str, $enc="" ) {
$counts = count_chars( $str );
$total = 0;
// Count ASCII bytes
for( $i = 0; $i < 0x80; $i++ ) {
$total += $counts[$i];
}
// Count multibyte sequence heads
for( $i = 0xc0; $i < 0xff; $i++ ) {
$total += $counts[$i];
}
return $total;
}
}
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