3v4l.org

run code in 300+ PHP versions simultaneously
<?php $v_4 = [ [1, 2, 3], [4, 5, 6], ]; $v_5 = [ [7, 8, 9], [10, 11, 12], ]; foreach ($v_4 as $i => &$row) { foreach ($row as $k => &$v) { $v += $v_5[$i][$k]; } } var_export($v_4);
Output for 7.4.0 - 7.4.33, 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 ( 0 => array ( 0 => 8, 1 => 10, 2 => 12, ), 1 => array ( 0 => 14, 1 => 16, 2 => 18, ), )
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:
105.46 ms | 407 KiB | 5 Q