PHP 7.2.7 Released


(PHP 4 >= 4.0.5, PHP 5)

mysql_get_proto_infoGet MySQL protocol info


int mysql_get_proto_info ([ resource $link_identifier ] )

Retrieves the MySQL protocol.



The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect() is assumed. If no such link is found, it will try to create one as if mysql_connect() was called with no arguments. If no connection is found or established, an E_WARNING level error is generated.

Return Values

Returns the MySQL protocol on success or FALSE on failure.


Example #1 mysql_get_proto_info() example

if (!
$link) {
'Could not connect: ' mysql_error());
printf("MySQL protocol version: %s\n"mysql_get_proto_info());

The above example will output something similar to:

MySQL protocol version: 10

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