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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
<refentry xml:id="function.pg-field-num" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>pg_field_num</refname>
<refpurpose>Returns the field number of the named field</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>pg_field_num</methodname>
<methodparam><type>PgSql\Result</type><parameter>result</parameter></methodparam>
<methodparam><type>string</type><parameter>field</parameter></methodparam>
</methodsynopsis>
<para>
<function>pg_field_num</function> will return the number of the
field number that corresponds to the
<parameter>field</parameter> in the given <parameter>result</parameter> instance.
</para>
<note>
<para>
This function used to be called <function>pg_fieldnum</function>.
</para>
</note>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>result</parameter></term>
<listitem>
&pgsql.parameter.result;
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>field</parameter></term>
<listitem>
<para>
The name of the field.
The given name is treated like an identifier in an SQL command,
that is, it is downcased unless double-quoted.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The field number (numbered from 0), or -1 on error.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
&pgsql.changelog.result-object;
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Getting information about fields</title>
<programlisting role="php">
<![CDATA[
<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
$res = pg_query($dbconn, "select author, year, title from authors where author = 'Orwell'");
echo "Column 'title' is field number: ", pg_field_num($res, 'title');
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Column 'title' is field number: 2
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>pg_field_name</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
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sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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-->
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