Build against PHP 5.6
| Use Flag | Description |
|---|---|
| php_targets_php7-4 | Build against PHP 7.4 |
| php_targets_php7-3 | Build against PHP 7.3 |
| php_targets_php7-2 | Build against PHP 7.2 |
| php_targets_php7-1 | Build against PHP 7.1 |
| php_targets_php7-0 | Build against PHP 7.0 |
| php_targets_php5-6 | Build against PHP 5.6 |