alexfurr

   function drawTimepicker($hourValue="", $minValue="",$hourID="myHour", $minID="myMin")
   {

   	if($hourValue==""){$hourValue=10;}
   	$i=1;
   	$html = '';
   	$html.='<select name="'.$hourID.'" id="'.$hourID.'">';
   	while($i<=23)
   	{
   		$iString = $i;

alexfurr

$arrayItems = array(
	array ("date" => "2018-10-21", "grade" => 50),
	array ("date" => "2018-04-02",  "grade" =>88),
	array ("date" => "2018-03-17",  "grade" =>76),
	array ("date" => "2018-03-10",  "grade" =>84),
	array ("date" => "2019-02-03",  "grade" =>67),
);

// Obtain a list of columns - last value is the key
$myCols  = array_column($arrayItems, 'date');

alexfurr

$categories = get_categories( array(
    'orderby' => 'name',
    'order'   => 'ASC',
	'hide_empty' => 0,
) );
 
 
$cats_tree = get_cat_tree(0,$categories);
function get_cat_tree($parent,$categories) {
    $result = array();