Inspired by the Grid Computing challenge at Code Golf, I came up with a couple of useful functions for reading and writing matrices in PHP 5.3
{[.matrix | 1.hilite(=php=)]}
Here is a demo page
{[.demo | 1.hilite(=php=)]}
whose result is
$input = ' A, B, C, D, E FFF, G, H, I, J K, L, MM, N, P Q, R, S, T, UUUU VVVVV, W, X, Y, Z ';
$output = ' A, B, C, D, E FFF, G, H, I, J K, L, MM, N, P Q, R, S, T, UUUU VVVVV, W, X, Y, Z ';
$output === $input
After uncommenting the transposition line, the result is
$input = ' A, B, C, D, E FFF, G, H, I, J K, L, MM, N, P Q, R, S, T, UUUU VVVVV, W, X, Y, Z ';
$output = ' A, FFF, K, Q, VVVVV B, G, L, R, W C, H, MM, S, X D, I, N, T, Y E, J, P, UUUU, Z ';
$output !== $input
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