public static function log($str)
{
$indent_str = ".";
if (!empty(self::$_PHPCAS_DEBUG['filename'])) {
// Check if file exists and modifiy file permissions to be only
// readable by the webserver
if (!file_exists(self::$_PHPCAS_DEBUG['filename'])) {
touch(self::$_PHPCAS_DEBUG['filename']);
// Chmod will fail on windows
@chmod(self::$_PHPCAS_DEBUG['filename'], 0600);
}
for ($i = 0; $i < self::$_PHPCAS_DEBUG['indent']; $i++) {
$indent_str .= '| ';
}
// allow for multiline output with proper identing. Usefull for
// dumping cas answers etc.
$str2 = str_replace("\n", "\n" . self::$_PHPCAS_DEBUG['unique_id'] . ' ' . $indent_str, $str);
error_log(self::$_PHPCAS_DEBUG['unique_id'] . ' ' . $indent_str . $str2 . "\n", 3, self::$_PHPCAS_DEBUG['filename']);
}
}