3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach( range(1,10) as $number) { echo ($number & 1 ? " \u{9999}" : $number ); }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 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 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
香2 香4 香6 香8 香10
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
\u{9999}2 \u{9999}4 \u{9999}6 \u{9999}8 \u{9999}10
preferences:
165.91 ms | 402 KiB | 184 Q