/* ================= AJAX CHECK ================= */
add_action('wp_ajax_canahr_check','canahr_check');
add_action('wp_ajax_nopriv_canahr_check','canahr_check');
function canahr_check(){
```
global $wpdb;
$table = $wpdb->prefix . 'canahr_offer_letters';
$passport = strtoupper(trim($_POST['passport']));
$row = $wpdb->get_row(
$wpdb->prepare(
"SELECT pdf_url FROM $table WHERE passport=%s",
$passport
)
);
if($row){
wp_send_json_success([
'pdf' => $row->pdf_url
]);
}else{
wp_send_json_error();
}
```
}
/* ================= SHORTCODE ================= */
add_shortcode('canahr_offer_letter', function(){
ob_start();
?>