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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
function sortAndJoin($arr, $delim) {
sort($arr);
return implode($delim, $arr);
}
$numArr = [3,5,1,59,42,16];
var_export(sortAndJoin($numArr, ','));
var_export($numArr);