Description:
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Since 5.6.x the crypto type can be determined from the ssl->crypto_method stream context value, it should no longer be a required argument. An error should emitted only when neither value is supplied.

Test script:
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$sock = stream_socket_client('tcp://google.com:443');
stream_context_set_option($sock, 'ssl', 'crypto_method', STREAM_CRYPTO_METHOD_TLS_CLIENT);
stream_socket_enable_crypto($sock, true);


Expected result:
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Crypto enabling succeeds, with method determined from the stream's context options

Actual result:
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Crypto enabling fails because 3rd argument is not supplied