3v4l.org

run code in 500+ PHP versions simultaneously
<?php $value = 'test1 test2 test3 test4 test5'; $value = preg_replace('/\s+\s+/','<br>',$value); echo $value;
Output for 5.6.38, 7.0.33, 7.1.25 - 7.1.33, 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
test1<br>test2 test3<br>test4 test5
preferences:
108.24 ms | 1493 KiB | 4 Q