bbcode per mio script

[cubalibre810]

<?php
function bbcode($bb) {
        $bbcode = nl2br($bb);
        $bbcode = str_replace("[ b ]", "[b]", $bbcode);
        $bbcode = str_replace("[/ b ]", "[/b]", $bbcode);
        $bbcode = str_replace("[ i ", "[i]", $bbcode);
        $bbcode = str_replace("[/ i ]", "[/i]", $bbcode);
        $bbcode = str_replace("[ u ]", "<u>", $bbcode);
        $bbcode = str_replace("[/ u ", "</u>", $bbcode);
        return $bbcode;
}
?>
<?php echo bbcode($row_rs_articolo['corpo_articolo']); ?>