extension snippet

snippet.c

typedef unsigned char ed25519_public_key[32];
typedef unsigned char ed25519_secret_key[32];

ZEND_FUNCTION(ec_generate_pk)
{
    ed25519_secret_key sk;
    int skLen;
    int curveType = 1;//EC_ED25519

    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &sk, &skLen, &curveType) == FAILURE) {
        RETURN_NULL();
    }
    ed25519_public_key pk;
    ed25519_publickey(sk,pk);
//...
}