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@ 2019-10-08T07:52:19Z

<?php

$mid = 123;
$csum = 0;

foreach(str_split($mid) as $m){
  $csum+= $m; 
}

$csum = $csum % 10;

echo $csum;

Output
Performance
VLD
References
Branches

str_split: documentation ( source)

preferences:dark modelive previewkey bindings

26.94 ms | 404 KiB | 5 Q