To show dropdown with currently selected option, first you need to fetch
current value. You can get that value from $_REQUEST
variable. If you have grade
variable then your current value is $_REQUEST[‘grade’].
Eg.
if ($_REQUEST['grade'] == $term->slug)
Recommended:
Do not use REQUEST variable directly without sanitization. Use function like esc_attr
. If you are sure that you need positive integer, you can use absint
.
May be.
$current_grade = esc_attr( $_REQUEST['grade'] );
if ($_REQUEST['grade'] == $term->slug)
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