result = <BR>
errno = 6<BR>
error = Could not resolve host: tlstest.paypal.com; Unknown error<BR>
<PRE>
OS: Linux
uname: Linux srv1.wheelshop.fr 4.19.62-mod-std-ipv6-64-rescue #828825 SMP Tue Jul 30 13:54:49 UTC 2019 x86_64
PHP version: 7.0.33
curl version: 7.29.0
SSL version: NSS/3.90
SSL version number: 0
OPENSSL_VERSION_NUMBER: 100020bf
TLS test (default): TLS 1.2
TLS test (TLS_v1): TLS 1.2
TLS test (TLS_v1_2): TLS 1.2
</PRE>