Online PHP editor | output for Tkf4u

@ 2017-12-27T10:19:53Z

<?php
$matrix = array
(
array (1,2, 3),
array (4, 5, 6),
array (7, 8, 9),
);

$sum1 = $matrix[0][0] * $matrix[1][1] * $matrix [2][2];
$sum2 = $matrix[0][1] * $matrix[1][2] * $matrix [2][0];
$sum3 = $matrix[0][2] * $matrix[1][0] * $matrix [2][1];
$sum4 = $matrix[2][0] * $matrix[1][1] * $matrix [0][2];
$sum5 = $matrix[2][1] * $matrix[1][2] * $matrix [0][0];
$sum6 = $matrix[2][2] * $matrix[1][0] * $matrix [0][1];

$result= $sum1 + $sum2 + $sum3 - $sum4 - $sum5 - $sum6;
$x=0;
foreach ($x as $matrix)  {
  echo $x;
}
?>

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Warning: foreach() argument must be of type array|object, int given in /in/Tkf4u on line 18
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: foreach() argument must be of type array|object, int given in /in/Tkf4u on line 18
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Warning: Invalid argument supplied for foreach() in /in/Tkf4u on line 18

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