8 lines
346 B
PHP
8 lines
346 B
PHP
function identity($length) {
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return array_map(function($key, $value) {$value[$key] = 1; return $value;}, range(0, $length-1),
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array_fill(0, $length, array_fill(0,$length, 0)));
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}
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function print_identity($identity) {
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echo implode(PHP_EOL, array_map(function ($value) {return implode(' ', $value);}, $identity));
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}
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print_identity(identity(10));
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