14 lines
182 B
PHP
14 lines
182 B
PHP
<?php
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function factorial($n) {
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if ($n < 0) {
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return 0;
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}
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$factorial = 1;
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for ($i = $n; $i >= 1; $i--) {
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$factorial = $factorial * $i;
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}
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return $factorial;
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}
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?>
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