<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >PDOStatement->fetchColumn()</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="Manual do PHP" HREF="index.html"><LINK REL="UP" TITLE="PDO Functions" HREF="ref.pdo.html"><LINK REL="PREVIOUS" TITLE="PDOStatement->fetchAll()" HREF="function.pdostatement-fetchall.html"><LINK REL="NEXT" TITLE="PDOStatement->fetchObject()" HREF="function.pdostatement-fetchobject.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Manual do PHP</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.pdostatement-fetchall.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.pdostatement-fetchobject.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.PDOStatement-fetchColumn" ></A >PDOStatement->fetchColumn()</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN173364" ></A ><P > (no version information, might be only in CVS)</P >PDOStatement->fetchColumn() -- Returns a single column from the next row of a result set </DIV ><DIV CLASS="refsect1" ><A NAME="AEN173367" ></A ><H2 >Descrição</H2 >class <B CLASS="classname" >PDOStatement</B > { <BR ></BR >string <B CLASS="methodname" >fetchColumn</B > ( [int column_number] )<BR ></BR >}<P > Returns a single column from the next row of a result set or <TT CLASS="constant" ><B >FALSE</B ></TT > if there are no more rows. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN173380" ></A ><H2 >Parâmetros</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >column_number</CODE ></DT ><DD ><P > 0-indexed number of the column you wish to retrieve from the row. If no value is supplied, <A HREF="function.pdostatement-fetchcolumn.html" >PDOStatement->fetchColumn()</A > fetches the first column. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN173390" ></A ><H2 >Valores de retornado</H2 ><P > <A HREF="function.pdostatement-fetchcolumn.html" >PDOStatement->fetchColumn()</A > returns a single column in the next row of a result set. </P ><DIV CLASS="warning" ><P ></P ><TABLE CLASS="warning" BORDER="1" WIDTH="100%" ><TR ><TD ALIGN="CENTER" ><B >Atenção</B ></TD ></TR ><TR ><TD ALIGN="LEFT" ><P > There is no way to return another column from the same row if you use <A HREF="function.pdostatement-fetchcolumn.html" >PDOStatement->fetchColumn()</A > to retrieve data. </P ></TD ></TR ></TABLE ></DIV ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN173397" ></A ><H2 >Exemplos</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN173400" ></A ><P ><B >Exemplo 1. Return first column of the next row</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$sth </font><font color="#007700">= </font><font color="#0000BB">$dbh</font><font color="#007700">-></font><font color="#0000BB">prepare</font><font color="#007700">(</font><font color="#DD0000">"SELECT name, colour FROM fruit"</font><font color="#007700">);<br /></font><font color="#0000BB">$sth</font><font color="#007700">-></font><font color="#0000BB">execute</font><font color="#007700">();<br /><br /></font><font color="#FF8000">/* Fetch the first column from the next row in the result set */<br /></font><font color="#007700">print(</font><font color="#DD0000">"Fetch the first column from the next row in the result set:\n"</font><font color="#007700">);<br /></font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">$sth</font><font color="#007700">-></font><font color="#0000BB">fetchColumn</font><font color="#007700">();<br />print(</font><font color="#DD0000">"name = $result</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">);<br /><br />print(</font><font color="#DD0000">"Fetch the second column from the next row in the result set:\n"</font><font color="#007700">);<br /></font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">$sth</font><font color="#007700">-></font><font color="#0000BB">fetchColumn</font><font color="#007700">(</font><font color="#0000BB">1</font><font color="#007700">);<br />print(</font><font color="#DD0000">"colour = $result</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P >O exemplo acima irá imprimir:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >Fetch the first column from the next row in the result set: name = lemon Fetch the second column from the next row in the result set: colour = red</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN173405" ></A ><H2 >Veja também</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.pdo-query.html" >PDO->query()</A ></TD ></TR ><TR ><TD ><A HREF="function.pdostatement-fetch.html" >PDOStatement->fetch()</A ></TD ></TR ><TR ><TD ><A HREF="function.pdostatement-fetchall.html" >PDOStatement->fetchAll()</A ></TD ></TR ><TR ><TD ><A HREF="function.pdo-prepare.html" >PDO->prepare()</A ></TD ></TR ><TR ><TD ><A HREF="function.pdostatement-setfetchmode.html" >PDOStatement->setFetchMode()</A ></TD ></TR ></TBODY ></TABLE ><P ></P > </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.pdostatement-fetchall.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Principal</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.pdostatement-fetchobject.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >PDOStatement->fetchAll()</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.pdo.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >PDOStatement->fetchObject()</TD ></TR ></TABLE ></DIV ></BODY ></HTML >