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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
function sum (...$x){
$n=0;
$len = count ($x);
for ($i=0; $i<$len; $i++){
$n +=$x [$i];
}
return $n;
}
$a = sum (5, 2, 3, 4, 5);
echo $a
?>