'<',
'>' => '>',
'[i]' => '', // deprecated by em
'[/i]' => '', // deprecated by em
'[em]' => '',
'[/em]' => '',
'[b]' => '', // deprecated by strong
'[/b]' => '', // deprecated by strong
'[strong]' => '',
'[/strong]' => '',
'[tt]' => '', // deprecated by CODE or KBD
'[/tt]' => '', // deprecated by CODE or KBD
'[code]' => '',
'[/code]' => '',
'[kbd]' => '',
'[/kbd]' => '',
'[br]' => '
',
'[/a]' => '',
'[sup]' => '',
'[/sup]' => '',
);
$message = strtr($message, $replace_pairs);
$pattern = '/\[a@([^"@]*)@([^]"]*)\]/';
if (preg_match_all($pattern, $message, $founds, PREG_SET_ORDER)) {
$valid_links = array(
'http', // default http:// links (and https://)
'./Do', // ./Documentation
);
foreach ($founds as $found) {
// only http... and ./Do... allowed
if (! in_array(substr($found[1], 0, 4), $valid_links)) {
return $message;
}
// a-z and _ allowed in target
if (! empty($found[2]) && preg_match('/[^a-z_]+/i', $found[2])) {
return $message;
}
}
$message = preg_replace($pattern, '', $message);
}
return $message;
}
?>