Removing last comma in PHP?

Question

I have this PHP code:

foreach( $wpdb->get_results(
) as $key => $row) {

echo \"[\'\". $row->DATE . \"\',\". $row->total_sales . \"],\";

}
         


        

Answer 1

You'll need variable to store comma state:

$comma = ""; ## don't need comma before first element
foreach( $wpdb->get_results(
    ) as $key => $row) {

    echo $comma."['". $row->DATE . "',". $row->total_sales . "]";
    $comma = ",";
}