3v4l.org

run code in 300+ PHP versions simultaneously
<?php $newlines = 'test' . PHP_EOL . 'newlines' . PHP_EOL . 'and such'; var_dump($newlines);
Output for 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
string(22) "test newlines and such"
preferences:
41.28 ms | 407 KiB | 5 Q