3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ [ "a" => 0.333, "b" => 0.730, "c" => 0.393 ], [ "a" => 0.323, "b" => 0.454, "c" => 0.987 ], [ "a" => 0.753, "b" => 0.983, "c" => 0.123 ] ]; var_export( array_reduce( array_keys($array[0] ?? []), fn($result, $k) => $result + [$k => array_sum($c = array_column($array, $k)) / count($c)], [] ) );
Output for 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
array ( 'a' => 0.4696666666666667, 'b' => 0.7223333333333333, 'c' => 0.501, )
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.
preferences:
116.83 ms | 407 KiB | 5 Q