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# mysql_get_proto_info

(PHP 4 >= 4.0.5)

mysql_get_proto_info -- Get MySQL protocol info

## Description

``int mysql_get_proto_info` ([resource link_identifier])`

mysql_get_proto_info() returns the protocol version used by connection `link_identifier`. If `link_identifier` is omited, the last opened connection will be used.

mysql_get_proto_info() was added in PHP 4.0.5.

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