$app_phone_number = get_field(‘xxx’);
$code = ‘+48’
<?php
if ( (strpos($app_phone_number, $code) !== false) && strlen($app_phone_number) > 11 ) {
$country_code = substr($app_phone_number, 3);
} else {
$country_code = $app_phone_number;
}
$tel_link = preg_replace('/[^0-9]/', '', $app_phone_number);
?>
<a href="tel:+<?php echo $tel_link; ?>"><?php echo $country_code; ?></a>