<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >mysqli_fetch_fields</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="MySQL Melhorada" HREF="ref.mysqli.html"><LINK REL="PREVIOUS" TITLE="mysqli_fetch_field" HREF="function.mysqli-fetch-field.html"><LINK REL="NEXT" TITLE="mysqli_fetch_lengths" HREF="function.mysqli-fetch-lengths.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.mysqli-fetch-field.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.mysqli-fetch-lengths.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.mysqli-fetch-fields" ></A >mysqli_fetch_fields</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN133976" ></A ><P > (PHP 5)</P >mysqli_fetch_fields<P > (no version information, might be only in CVS)</P >result->fetch_fields -- Retorna uma matriz de objetos representando os campos em um conjunto de resultados</DIV ><DIV CLASS="refsect1" ><A NAME="AEN133980" ></A ><H2 >Descrição</H2 ><P >Estilo de procedimento:</P >mixed <B CLASS="methodname" >mysqli_fetch_fields</B > ( object result )<BR ></BR ><P >Estilo orientado a objeto (metodo):</P >class <B CLASS="classname" >result</B > { <BR ></BR >mixed <B CLASS="methodname" >fetch_fields</B > ( void )<BR ></BR >}<P > Esta função serve para o mesmo propósito que a função <A HREF="function.mysqli-fetch-field.html" ><B CLASS="function" >mysqli_fetch_field()</B ></A > com uma simples diferença, ao invés de retornar um objeto de cada vez para cada campo, as colunas são retornadas como uma matriz de objetos. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN133999" ></A ><H2 >Valores de retorno</H2 ><P > Retorna uma matriz de objetos o quais contém informações sobre as definições dos campo ou <TT CLASS="constant" ><B >FALSE</B ></TT > se não houver inforções dos campos disponíveis. </P ><P > <DIV CLASS="table" ><A NAME="AEN134004" ></A ><P ><B >Tabela 1. Propriedades dos objetos</B ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><THEAD ><TR ><TH >Propriedade</TH ><TH >Descrição</TH ></TR ></THEAD ><TBODY ><TR ><TD >name</TD ><TD >O nome da coluna</TD ></TR ><TR ><TD >orgname</TD ><TD >O nome original da coluna se foi especificado um alias</TD ></TR ><TR ><TD >table</TD ><TD >O nome da tabela a qual o campo pertence (se não for calculado)</TD ></TR ><TR ><TD >orgtable</TD ><TD >Nome da tabela original se foi especificado um alias</TD ></TR ><TR ><TD >def</TD ><TD >O valor padrão para este campo, representado como um string</TD ></TR ><TR ><TD >max_length</TD ><TD >A largura máxima do campo no conjunto de resultados.</TD ></TR ><TR ><TD >flags</TD ><TD >Um inteiro representando bit-flags para o campo.</TD ></TR ><TR ><TD >type</TD ><TD >O tipo de dados usado para este campo</TD ></TR ><TR ><TD >decimals</TD ><TD >O número de decimais usados (para campos integer)</TD ></TR ></TBODY ></TABLE ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN134039" ></A ><H2 >Veja também</H2 ><P > <A HREF="function.mysqli-num-fields.html" ><B CLASS="function" >mysqli_num_fields()</B ></A > <A HREF="function.mysqli-fetch-field.html" ><B CLASS="function" >mysqli_fetch_field()</B ></A > <A HREF="function.mysqli-fetch-field-direct.html" ><B CLASS="function" >mysqli_fetch_field_direct()</B ></A > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN134045" ></A ><H2 >Exemplo</H2 ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN134047" ></A ><P ><B >Exemplo 1. Estilo orientado a objeto</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$mysqli </font><font color="#007700">= new </font><font color="#0000BB">mysqli</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"my_user"</font><font color="#007700">, </font><font color="#DD0000">"my_password"</font><font color="#007700">, </font><font color="#DD0000">"world"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* check connection */<br /></font><font color="#007700">if (</font><font color="#0000BB">mysqli_connect_errno</font><font color="#007700">()) {<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Connect failed: %s\n"</font><font color="#007700">, </font><font color="#0000BB">mysqli_connect_error</font><font color="#007700">());<br /> exit();<br />}<br /><br /></font><font color="#0000BB">$query </font><font color="#007700">= </font><font color="#DD0000">"SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5"</font><font color="#007700">;<br /><br />if (</font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">$mysqli</font><font color="#007700">-></font><font color="#0000BB">query</font><font color="#007700">(</font><font color="#0000BB">$query</font><font color="#007700">)) {<br /><br /> </font><font color="#FF8000">/* Get field information for all columns */<br /> </font><font color="#0000BB">$finfo </font><font color="#007700">= </font><font color="#0000BB">$result</font><font color="#007700">-></font><font color="#0000BB">fetch_fields</font><font color="#007700">();<br /><br /> for (</font><font color="#0000BB">$i</font><font color="#007700">=</font><font color="#0000BB">0</font><font color="#007700">; </font><font color="#0000BB">$i </font><font color="#007700">< </font><font color="#0000BB">count</font><font color="#007700">(</font><font color="#0000BB">$finfo</font><font color="#007700">); </font><font color="#0000BB">$i</font><font color="#007700">++) { <br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Name: %s\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">name</font><font color="#007700">);<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Table: %s\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">table</font><font color="#007700">);<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"max. Len: %d\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">max_length</font><font color="#007700">);<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Flags: %d\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">flags</font><font color="#007700">);<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Type: %d\n\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">type</font><font color="#007700">);<br /> } <br /> </font><font color="#0000BB">$result</font><font color="#007700">-></font><font color="#0000BB">close</font><font color="#007700">();<br />}<br /><br /></font><font color="#FF8000">/* close connection */<br /></font><font color="#0000BB">$mysqli</font><font color="#007700">-></font><font color="#0000BB">close</font><font color="#007700">();<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN134050" ></A ><P ><B >Exemplo 2. Estilo de procedimento</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$link </font><font color="#007700">= </font><font color="#0000BB">mysqli_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"my_user"</font><font color="#007700">, </font><font color="#DD0000">"my_password"</font><font color="#007700">, </font><font color="#DD0000">"world"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* check connection */<br /></font><font color="#007700">if (</font><font color="#0000BB">mysqli_connect_errno</font><font color="#007700">()) {<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Connect failed: %s\n"</font><font color="#007700">, </font><font color="#0000BB">mysqli_connect_error</font><font color="#007700">());<br /> exit();<br />}<br /><br /></font><font color="#0000BB">$query </font><font color="#007700">= </font><font color="#DD0000">"SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5"</font><font color="#007700">;<br /><br />if (</font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">mysqli_query</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#0000BB">$query</font><font color="#007700">)) {<br /><br /> </font><font color="#FF8000">/* Get field information for all columns */<br /> </font><font color="#0000BB">$finfo </font><font color="#007700">= </font><font color="#0000BB">mysqli_fetch_fields</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">);<br /> <br /> for (</font><font color="#0000BB">$i</font><font color="#007700">=</font><font color="#0000BB">0</font><font color="#007700">; </font><font color="#0000BB">$i </font><font color="#007700">< </font><font color="#0000BB">count</font><font color="#007700">(</font><font color="#0000BB">$finfo</font><font color="#007700">); </font><font color="#0000BB">$i</font><font color="#007700">++) { <br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Name: %s\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">name</font><font color="#007700">);<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Table: %s\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">table</font><font color="#007700">);<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"max. Len: %d\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">max_length</font><font color="#007700">);<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Flags: %d\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">flags</font><font color="#007700">);<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Type: %d\n\n"</font><font color="#007700">, </font><font color="#0000BB">$finfo</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]-></font><font color="#0000BB">type</font><font color="#007700">);<br /> } <br /> </font><font color="#0000BB">mysqli_free_result</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">);<br />}<br /><br /></font><font color="#FF8000">/* close connection */<br /></font><font color="#0000BB">mysqli_close</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ><P > Os exemplos acima devem produzir a seguinte saída: </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >Name: Name Table: Country max. Len: 11 Flags: 1 Type: 254 Name: SurfaceArea Table: Country max. Len: 10 Flags: 32769 Type: 4</PRE ></TD ></TR ></TABLE ></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.mysqli-fetch-field.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.mysqli-fetch-lengths.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >mysqli_fetch_field</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.mysqli.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >mysqli_fetch_lengths</TD ></TR ></TABLE ></DIV ></BODY ></HTML >