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  <refentry id="function.maxdb-debug">
   <refnamediv>
    <refname>maxdb_debug</refname>
    <refpurpose>Performs debugging operations</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>void</type><methodname>maxdb_debug</methodname>
      <methodparam><type>string</type><parameter>debug</parameter></methodparam>
     </methodsynopsis>
     <para>
      The <function>maxdb_debug</function> can be used to trace the SQLDBC communication. The following
      strings can be used as a parameter to <function>maxdb_debug</function>:
     </para>
     <simplelist>
     <member>TRACE SHORT ON|OFF - Enables/disables method call trace.</member>
     <member>TRACE LONG ON|OFF - Enables/disables method argument and detail debug trace.</member>
     <member>TRACE PACKET ON|OFF|&#x3c;size&#x3e; - Enables/disables packet trace, limiting the size of the 
             traced object to the specified number of bytes, or 1000 if no size is specified.</member>
     <member>TRACE SQL ON|OFF - Enables/disables high level api trace.</member>
     <member>TRACE TIMESTAMP ON|OFF - Enables/disables a timestamp prefix on each line that is 
             traced.</member>
     <member>TRACE SIZE &#x3c;size&#x3e; - Limits the size of the trace file to &#x3c;size&#x3e; bytes, 
             at least 8192 bytes are required.</member>
     </simplelist>
   </refsect1>
   <refsect1>
    <title>Return values</title>
    <para><function>maxdb_debug</function> doesn't return any value.</para>
   </refsect1>
   <refsect1>
    <title>Example</title>
    <example>
     <title>Procedural style</title>
     <programlisting role="php">
<![CDATA[
<?php
   
maxdb_debug("trace packet 200");

$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

/* check connection */ 
if (!$link) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

/* close connection */
maxdb_close($link);   
?>
]]>
     </programlisting>
    </example>
    <para>
     The above example produces no output.
    </para>
   </refsect1>
  </refentry>

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