| 1: | <?php |
| 2: | |
| 3: | namespace ngatngay; |
| 4: | |
| 5: | class arr |
| 6: | { |
| 7: | public static function getFromPage(array $data, int $page, int $perPage = 10): array |
| 8: | { |
| 9: | $result = []; |
| 10: | $total = count($data); |
| 11: | $start = ($page - 1) * $perPage; |
| 12: | $end = $start + $perPage; |
| 13: | |
| 14: | if ($start < 0) { |
| 15: | $start = 0; |
| 16: | } |
| 17: | |
| 18: | if ($end > $total) { |
| 19: | $end = $total; |
| 20: | } |
| 21: | |
| 22: | for ($start; $start < $end; $start++) { |
| 23: | $result[] = $data[$start]; |
| 24: | } |
| 25: | |
| 26: | return $result; |
| 27: | } |
| 28: | |
| 29: | public static function toFile(string $filename, array $arr) { |
| 30: | return file_put_contents( |
| 31: | $filename, |
| 32: | '<?php return ' . var_export($arr, true) . ';' |
| 33: | ); |
| 34: | } |
| 35: | } |
| 36: | |