3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'áâãäąăāæåߧśšşçćčźżžýųűů'; var_export( preg_replace( '~.{8}\K(?!$)~u', "\n", $str ) );
Output for 7.4.0 - 7.4.33, 8.0.1 - 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
'áâãäąăāæ åߧśšşçć čźżžýųűů'
preferences:
94.6 ms | 1241 KiB | 4 Q