Tell me how to add the sum of the numbers entered by the user? For example, 534 should be 12

Closed due to the fact that off-topic participants Ksenia , HamSter , Anton Shchyrov , iluxa1810 , Nicolas Chabanovsky ♦ 16 Nov '16 at 7:00 .

It seems that this question does not correspond to the subject of the site. Those who voted to close it indicated the following reason:

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  • What is your problem with counting the sum of numbers? - Visman
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2 answers 2

Alternatively, you can:

echo array_sum(str_split('534')); 
     function sumInt($var) { $var = strval($var); $sum = 0; for ($i = 0; $i < strlen($var); $i++) { $sum += (int)$var[$i]; } return $sum; } $sum = sumInt(534);