3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'Hello!'; echo <<< /*comment*/ EOD $var EOD;
Output for 8.1.0 - 8.1.29, 8.2.0 - 8.2.22, 8.3.0 - 8.3.10
Parse error: syntax error, unexpected token "<<" in /in/7PIEK on line 3
Process exited with code 255.
preferences:
162.96 ms | 1000 KiB | 7 Q