Hello,
I follow this documentation:
https://www.advancedcustomfields.com/resources/creating-wp-archive-custom-field-filter/
Here is the code:
####################
// array of filters (field key => field name)
$GLOBALS[‘my_query_filters’] = array(
‘field_1’ => ‘couloc’,
‘field_2’ => ‘coucat’
);
// action
add_action(‘pre_get_posts’, ‘my_pre_get_posts’, 10, 1);
function my_pre_get_posts( $query ) {
// bail early if is in admin
if( is_admin() ) return;
// bail early if not main query
// – allows custom code / plugins to continue working
if( !$query->is_main_query() ) return;
// get meta query
$meta_query = $query->get(‘meta_query’);
// loop over filters
foreach( $GLOBALS[‘my_query_filters’] as $key => $name ) {
// continue if not found in url
if( empty($_GET[ $name ]) ) {
continue;
}
// get the value for this filter
// eg: http://www.website.com/events?city=melbourne,sydney
$value = explode(‘,’, $_GET[ $name ]);
// append meta query
$meta_query[] = array(
‘key’ => $name,
‘value’ => $value,
‘compare’ => ‘IN’,
);
}
// update meta query
$query->set(‘meta_query’, $meta_query);
}
####################
But when I try I have an error… (see image)
Can you tell me why?
Capture-d’....png
Capture-d’....png
