count.
*/
private static function ayudawp_prepare_sparkline_data( $timeline, $start_date, $end_date ) {
$data = array();
$current = strtotime( $start_date );
$end = strtotime( $end_date );
while ( $current <= $end ) {
$date_key = gmdate( 'Y-m-d', $current );
$data[ $date_key ] = 0;
$current = strtotime( '+1 day', $current );
}
foreach ( $timeline as $row ) {
if ( isset( $data[ $row['date'] ] ) ) {
$data[ $row['date'] ] = (int) $row['click_count'];
}
}
return $data;
}
/**
* Render sparkline chart
*
* @param array $data Sparkline data.
*/
private static function ayudawp_render_sparkline( $data ) {
$values = array_values( $data );
$dates = array_keys( $data );
$max = max( $values );
if ( 0 === $max ) {
$max = 1;
}
?>