Copybara bot | be50d49 | 2023-11-30 00:16:42 +0100 | [diff] [blame] | 1 | <?php |
| 2 | class db { |
| 3 | const EXPORT_DB_FORMAT_SQL = 0; |
| 4 | |
| 5 | public static function sanitize($string) { |
| 6 | global $con; |
| 7 | return mysqli_real_escape_string($con, $string); |
| 8 | } |
| 9 | |
| 10 | public static function needsSetUp() { |
| 11 | global $con; |
| 12 | |
| 13 | $checkquery = mysqli_query($con, "SELECT 1 FROM people LIMIT 1"); |
| 14 | |
| 15 | return ($checkquery === false); |
| 16 | } |
| 17 | |
| 18 | public static function numRows($table) { |
| 19 | global $con; |
| 20 | |
| 21 | $stable = preg_replace("/[^A-Za-z0-9 ]/", '', $table); |
| 22 | |
| 23 | $query = mysqli_query($con, "SELECT 1 FROM $stable"); |
| 24 | |
| 25 | if ($query === false) return -1; |
| 26 | |
| 27 | return mysqli_num_rows($query); |
| 28 | } |
| 29 | |
| 30 | public static function limitPagination($start, $limit) { |
| 31 | $slimit = (int)$limit; |
| 32 | $sstart = $slimit*(int)$start; |
| 33 | if ($slimit > 100 || $slimit < 0) return false; |
| 34 | if ($sstart < 0) return false; |
| 35 | |
| 36 | return ($slimit == 0 ? "" : " LIMIT $sstart,$slimit"); |
| 37 | } |
| 38 | } |