Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, …

By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

**Answer**` Show ▼`

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**Script**

Execution Time: 0.0001 seconds

$sum = 0; $val1 = 1; $val2 = 2; $maxVal = 4000000; while ($val2 < $maxVal) { if ($val2%2 == 0) { $sum += $val2; } $temp = $val2; $val2 = $val1+$val2; $val1 = $temp; } echo $sum.PHP_EOL;