<?xml version="1.0" encoding="utf-8"?>
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.maxdb-fetch-lengths">
 <refnamediv>
  <refname>maxdb_fetch_lengths</refname>
  <refname>maxdb_result::lengths</refname>
  <refpurpose>Returns the lengths of the columns of the current row in the result set</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <para>&style.procedural;</para>
  <methodsynopsis>
   <type>array</type><methodname>maxdb_fetch_lengths</methodname>
   <methodparam><type>resource</type><parameter>result</parameter></methodparam>
  </methodsynopsis>
  <para>&style.oop;</para>
  <fieldsynopsis><type>array</type><varname>maxdb_result->lengths</varname></fieldsynopsis>
  <para>
   The <function>maxdb_fetch_lengths</function> function returns an array containing the
   lengths of every column of the current row within the result set represented by the
   <parameter>result</parameter> parameter. If successful, a numerically indexed array
   representing the lengths of each column is returned&return.falseforfailure;.
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   An array of integers representing the size of each column (not including
   any terminating null characters). &false; if an error occurred.
  </para>
  <para>
   <function>maxdb_fetch_lengths</function> is valid only for the current row of the result set.
   It returns &false; if you call it before calling maxdb_fetch_row/array/resource or after retrieving
   all rows in the result.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title>&style.oop;</title>
   <programlisting role="php">
<![CDATA[
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

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

$query = "SELECT * from hotel.customer WHERE cno = 3000";

if ($result = $maxdb->query($query)) {

   $row = $result->fetch_row();

   /* display column lengths */
   foreach ($result->lengths as $i => $val) {
       printf("Field %2d has Length %2d\n", $i+1, $val);
   }
   $result->close();
}

/* close connection */
$maxdb->close();
?>
]]>
   </programlisting>
  </example>
  <example>
   <title>&style.procedural;</title>
   <programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

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

$query = "SELECT * from hotel.customer WHERE cno = 3000";

if ($result = maxdb_query($link, $query)) {

   $row = maxdb_fetch_row($result);

   /* display column lengths */
   foreach (maxdb_fetch_lengths($result) as $i => $val) {
       printf("Field %2d has Length %2d\n", $i+1, $val);
   }
   maxdb_free_result($result);
}

/* close connection */
maxdb_close($link);
?>
]]>
   </programlisting>
  </example>
  &example.outputs.similar;
  <screen>
<![CDATA[
Field  1 has Length  4
Field  2 has Length  3
Field  3 has Length  5
Field  4 has Length  6
Field  5 has Length  5
Field  6 has Length 21
]]>
  </screen>
 </refsect1>

</refentry>

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