mysqli_get_client_info    (PHP 5 CVS only) mysqli_get_client_info -- Returns the MySQL client version as a string Descriptionstring  mysqli_get_client_info ( void ) 
     The mysqli_get_client_info() function is used to 
     return a string representing the client version being used in the 
     MySQLi extension.
     返回值
     A string that represents the MySQL client library version
     Example
      例子 1. mysqli_get_client_info 
<?php
  /* We don't need a connection to determine    the version of mysql client library */
  printf("Client library version: %s\n", mysqli_get_client_info()); ?>
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