3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = [ 'Sunscreen 25g (200 Quantity)', 'Lubricant 100ml (50 Quantity)', 'WD-40 100ml (75 Quantity)', ]; foreach ($strings as $string) { echo preg_replace('~[^(]+\((\d+).*~', '$1', $string) . "\n"; }
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
200 50 75

preferences:
51.5 ms | 407 KiB | 5 Q