how to write a php code to pass components, client-id and data-client-token to js
src="https://www.paypal.com/sdk/js?components=hosted-fields,buttons&client-id=******" data-client-token="*******"
Maybe this is what your looking for:
PHP:
$clientID = '123';
$clientToken = 'ABC';
JS:
src="https://www.paypal.com/sdk/js?components=hosted-fields,buttons&client-id="<?=$clientID>" data-client-token="<?=$clientToken>"