CURLOPT_SSL_ENABLE_ALPN
Constant • Added in PHP 7.0
CURLOPT_SSL_ENABLE_ALPN is one of the accepted parameters for curl_setopt parameter #2.
CURLOPT_SSL_ENABLE_ALPN — false to disable ALPN in the SSL handshake (if the SSL backend
cURL is built to use supports it), which can be used to
negotiate http2.
Available as of PHP 7.0.7 and cURL 7.36.0.
CURLOPT_SSL_ENABLE_ALPN = 226;Changes to the CURLOPT_SSL_ENABLE_ALPN Constant
PHP 7.0
- Constant added
CURLOPT_SSL_ENABLE_ALPN Constant Availability
CURLOPT_SSL_ENABLE_ALPN Constant Availability| PHP Version | Availability |
|---|---|
| PHP 8.5Future Release | Yes |
| PHP 8.4Upcoming Release | Yes |
| PHP 8.3Supported (Latest) | Yes |
| PHP 8.2Supported | Yes |
| PHP 8.1Security-Fixes Only | Yes |
| PHP 8.0Unsupported | Yes |
| PHP 7.4Unsupported | Yes |
| PHP 7.3Unsupported | Yes |
| PHP 7.2Unsupported | Yes |
| PHP 7.1Unsupported | Yes |
| PHP 7.0Unsupported | Yes |
| PHP 5.6Unsupported | No |
| PHP 5.5Unsupported | No |
| PHP 5.4Unsupported | No |
| PHP 5.3Unsupported | No |