How to encrypt PHP?

Question

PHP

In general, there is a script:

$domainCheck = file_get_contents('http://site.ru/check/check.php?domain='.$_SERVER['SERVER_NAME'].'');

This returns either 0 or a blank page.
How to encrypt so that they could not determine what is written there and could not change it (the code will be merged with all scripts)

Answer 1

There is no point in hiding this fragment: anyone who gets hold of the "encrypted" code can easily find out where the script is knocking.

Answer 2

IonCube, Zend Guard

Answer 3

No way

Answer 4

No way.
ioncube to help (ps it also stands for)

Answer 5

everything is decoded. any encrypted code after unpacking ioncube / zend guard into a set of buckets can be read and put into a file. another thing is whether the price of decryption is equivalent to paying for a license for the code