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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
function sum ( $n) {
$n = 0;
$len = count ($n);
for ($i = 0 ; $i < $len ; $i++){
$n += $n [$i];
}
return $n ;
}
$a = sum (5,2,7,8);
echo $a;
?>