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29 lines
489 B
PHP
29 lines
489 B
PHP
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<?php
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/**
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* Genera il prodotto cartesiano tra gli elementi dell'array di input.
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*
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* @param $input
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*
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* @return array|array[]
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*/
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function cartesian($input)
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{
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$result = [[]];
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foreach ($input as $key => $values) {
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$append = [];
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foreach ($result as $product) {
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foreach ($values as $item) {
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$product[$key] = $item;
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$append[] = $product;
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}
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}
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$result = $append;
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}
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return $result;
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}
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