12 lines
204 B
PHP
12 lines
204 B
PHP
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<?php
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$fib = array(1,2,3);
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$sum = 2;
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while($fib[2] < 4000000) {
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$fib[2] = $fib[0] + $fib[1];
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if($fib[2] % 2 == 0) {
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$sum += $fib[2];
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}
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$fib[0] = $fib[1];
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$fib[1] = $fib[2];
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}
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echo $sum;
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