22 lines
354 B
PHP
22 lines
354 B
PHP
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<?php
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function is_Power_of_four($n)
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{
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$x = $n;
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while ($x % 4 == 0) {
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$x /= 4;
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}
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if($x == 1)
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{
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return "$n is power of 4";
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}
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else
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{
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return "$n is not power of 4";
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}
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}
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print_r(is_Power_of_four(4)."\n");
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print_r(is_Power_of_four(36)."\n");
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print_r(is_Power_of_four(16)."\n");
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?>
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