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@ 2018-09-21T00:21:00Z

<?php


$d = 451;
$sum = 0;
for($i=0; $i<strlen($d); $i++) {
    $sum += (int)substr($d, $i, 1);
}
print $sum;

Output
Performance
VLD
References
Branches

substr: documentation ( source)

preferences:dark modelive preview

50.53 ms | 402 KiB | 5 Q