php-doc-en/reference/mysqli/functions/mysqli-get-client-version.xml

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  <refentry id="function.mysqli-get-client-version">
   <refnamediv>
    <refname>mysqli_get_client_version</refname>
    <refpurpose>Get MySQL client info</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>int</type><methodname>mysqli_get_client_version</methodname>
      <void/>
     </methodsynopsis>
     <para>
      Returns client version number as an integer.
     </para>
   </refsect1>
   <refsect1>
    &reftitle.returnvalues;
    <para>
     A number that represents the MySQL client library version in format:
     <literal>main_version*10000 + minor_version *100 + sub_version</literal>.
     For example, 4.1.0 is returned as 40100.
    </para>
    <para>
      This is useful to quickly determine the version of the client library
      to know if some capability exits. 
    </para>
   </refsect1>
   <refsect1>
    &reftitle.seealso;
    <para>
     <function>mysqli_get_client_info</function>,
     <function>mysqli_get_server_info</function>&listendand;
     <function>mysqli_get_server_version</function>.
    </para>
   </refsect1>
   <refsect1>
    &reftitle.examples;
    <para>
     <example>
      <title>mysqli_get_client_version</title>
      <programlisting role='php'>
<![CDATA[
<?php

/* We don't need a connection to determine
   the version of mysql client library */

printf("Client library version: %d\n", mysqli_get_client_version());
?>
]]>
      </programlisting>
     </example>
    </para>
   </refsect1>
  </refentry>

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