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https://github.com/sigmasternchen/php-doc-en
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597c9e6b87
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@171848 c90b9560-bf6c-de11-be94-00142212c4b1
115 lines
3 KiB
XML
115 lines
3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.4 $ -->
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<!-- splitted from ./en/functions/fbsql.xml, last change in rev 1.1 -->
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<refentry id="function.fbsql-fetch-field">
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<refnamediv>
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<refname>fbsql_fetch_field</refname>
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<refpurpose>
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Get column information from a result and return as an object
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</refpurpose>
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</refnamediv>
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<refsect1>
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&reftitle.description;
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<methodsynopsis>
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<type>object</type><methodname>fbsql_fetch_field</methodname>
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<methodparam><type>resource</type><parameter>result</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>
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field_offset
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</parameter></methodparam>
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</methodsynopsis>
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<para>
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Returns an object containing field information.
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</para>
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<para>
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<function>fbsql_fetch_field</function> can be used in order to
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obtain information about fields in a certain query result. If
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the field offset isn't specified, the next field that wasn't yet
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retrieved by <function>fbsql_fetch_field</function> is retrieved.
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</para>
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<para>
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The properties of the object are:
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<itemizedlist>
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<listitem>
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<simpara>
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name - column name
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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table - name of the table the column belongs to
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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max_length - maximum length of the column
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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not_null - 1 if the column cannot be &null;
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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type - the type of the column
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</simpara>
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</listitem>
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</itemizedlist>
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</para>
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<example>
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<title><function>fbsql_fetch_field</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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fbsql_connect($host, $user, $password)
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or die("Could not connect");
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$result = fbsql_db_query("database", "select * from table")
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or die("Query failed");
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# get column metadata
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$i = 0;
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while ($i < fbsql_num_fields($result)) {
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echo "Information for column $i:<br />\n";
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$meta = fbsql_fetch_field($result);
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if (!$meta) {
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echo "No information available<br />\n";
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}
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echo "<pre>
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max_length: $meta->max_length
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name: $meta->name
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not_null: $meta->not_null
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table: $meta->table
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type: $meta->type
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</pre>";
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$i++;
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}
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fbsql_free_result($result);
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?>
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]]>
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</programlisting>
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</example>
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<para>
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See also <function>fbsql_field_seek</function>.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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