Add this line, before using $wpdb
:
global $wpdb;
In the line:
$item_info = $wpdb->get_row("SELECT * FROM fm_household WHERE k_RecordNum='$id'");
in WHERE
clause, k_RecordNum
is being compared to '$id'
string, not to the string value of $id
parameter. Change this line to:
$item_info = $wpdb->get_row("SELECT * FROM fm_household WHERE k_RecordNum='{$id}'");
It is very important to check, if your result ( $item_info
) is, in fact, an object. Replace this line:
return $item_info->HomeCity;
with:
if(is_object($item_info)) {
return $item_info->HomeCity;
} else {
return $value;
}
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