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<?php | |
function get_tls_version($sslversion = null) | |
{ | |
$c = curl_init(); | |
curl_setopt($c, CURLOPT_URL, "https://www.howsmyssl.com/a/check"); | |
curl_setopt($c, CURLOPT_RETURNTRANSFER, true); | |
if ($sslversion !== null) { | |
curl_setopt($c, CURLOPT_SSLVERSION, $sslversion); | |
} | |
$rbody = curl_exec($c); | |
if ($rbody === false) { | |
$errno = curl_errno($c); | |
$msg = curl_error($c); | |
curl_close($c); | |
return "Error! errno = " . $errno . ", msg = " . $msg; | |
} else { | |
$r = json_decode($rbody); | |
curl_close($c); | |
return $r->tls_version; | |
} | |
} | |
echo "<pre>\n"; | |
echo "OS: " . PHP_OS . "\n"; | |
echo "uname: " . php_uname() . "\n"; | |
echo "PHP version: " . phpversion() . "\n"; | |
$curl_version = curl_version(); | |
echo "curl version: " . $curl_version["version"] . "\n"; | |
echo "SSL version: " . $curl_version["ssl_version"] . "\n"; | |
echo "SSL version number: " . $curl_version["ssl_version_number"] . "\n"; | |
echo "OPENSSL_VERSION_NUMBER: " . dechex(OPENSSL_VERSION_NUMBER) . "\n"; | |
echo "TLS test (default): " . get_tls_version() . "\n"; | |
echo "TLS test (TLS_v1): " . get_tls_version(1) . "\n"; | |
echo "TLS test (TLS_v1_2): " . get_tls_version(6) . "\n"; | |
echo "</pre>\n"; | |
?> |
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