3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 10; if($x < ++$x) { echo "Hello World"; } ?>
Output for 5.1.1 - 5.1.6, 5.2.17, 5.3.29, 5.4.45, 7.0.25, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 4.3.0, 4.4.0, 5.0.0 - 5.0.5
Hello World
preferences:
123.71 ms | 408 KiB | 5 Q