<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >imagecreatefromjpeg</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="Imagens, Funções de" HREF="ref.image.html"><LINK REL="PREVIOUS" TITLE="imagecreatefromgif" HREF="function.imagecreatefromgif.html"><LINK REL="NEXT" TITLE="imagecreatefrompng" HREF="function.imagecreatefrompng.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.imagecreatefromgif.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.imagecreatefrompng.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.imagecreatefromjpeg" ></A >imagecreatefromjpeg</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN84081" ></A ><P > (PHP 3 >= 3.0.16, PHP 4, PHP 5)</P >imagecreatefromjpeg -- Cria uma nova imagem a apratir de um arquivo ou URL</DIV ><DIV CLASS="refsect1" ><A NAME="AEN84084" ></A ><H2 >Descrição</H2 >resource <B CLASS="methodname" >imagecreatefromjpeg</B > ( string filename )<BR ></BR ><P > <B CLASS="function" >imagecreatefromjpeg()</B > retorna um identificador de imagem representando a imagem obtida através do nome de arquivo dado. </P ><P > <B CLASS="function" >imagecreatefromjpeg()</B >retorna uma string vazia em caso de falha. Também mostra uma mensagem de erro, a qual infelizmente aparece como um link quebrado no browser. Para facilitar o debug, o exemplo asseguir irá prodizir um <ACRONYM CLASS="acronym" >JPEG</ACRONYM > de erro: <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN84097" ></A ><P ><B >Exemplo 1. Exemplo de como manipular um erro durante a criação (cortesia de vic at zymsys dot com) </B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /></font><font color="#007700">function </font><font color="#0000BB">LoadJpeg</font><font color="#007700">(</font><font color="#0000BB">$imgname</font><font color="#007700">) <br />{<br /> </font><font color="#0000BB">$im </font><font color="#007700">= @</font><font color="#0000BB">imagecreatefromjpeg</font><font color="#007700">(</font><font color="#0000BB">$imgname</font><font color="#007700">); </font><font color="#FF8000">/* Attempt to open */<br /> </font><font color="#007700">if (!</font><font color="#0000BB">$im</font><font color="#007700">) { </font><font color="#FF8000">/* See if it failed */<br /> </font><font color="#0000BB">$im </font><font color="#007700">= </font><font color="#0000BB">imagecreate</font><font color="#007700">(</font><font color="#0000BB">150</font><font color="#007700">, </font><font color="#0000BB">30</font><font color="#007700">); </font><font color="#FF8000">/* Create a blank image */<br /> </font><font color="#0000BB">$bgc </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">255</font><font color="#007700">, </font><font color="#0000BB">255</font><font color="#007700">, </font><font color="#0000BB">255</font><font color="#007700">);<br /> </font><font color="#0000BB">$tc </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">);<br /> </font><font color="#0000BB">imagefilledrectangle</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">150</font><font color="#007700">, </font><font color="#0000BB">30</font><font color="#007700">, </font><font color="#0000BB">$bgc</font><font color="#007700">);<br /> </font><font color="#FF8000">/* Output an errmsg */<br /> </font><font color="#0000BB">imagestring</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">1</font><font color="#007700">, </font><font color="#0000BB">5</font><font color="#007700">, </font><font color="#0000BB">5</font><font color="#007700">, </font><font color="#DD0000">"Error loading $imgname"</font><font color="#007700">, </font><font color="#0000BB">$tc</font><font color="#007700">);<br /> }<br /> return </font><font color="#0000BB">$im</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><DIV CLASS="tip" ><BLOCKQUOTE CLASS="tip" ><P ><B >Dica: </B >Você pode usar uma URL com esta função se <A HREF="ref.filesystem.html#ini.allow-url-fopen" > fopen wrappers</A > estiver habilitado. Veja <A HREF="function.fopen.html" ><B CLASS="function" >fopen()</B ></A > para mais detalhes em como especificar o nome do arquivo e <A HREF="wrappers.html" >Apêndice N</A > para uma lista de protocolos URL suportados.</P ></BLOCKQUOTE ></DIV ><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 >A versões Windows do PHP anteriores ao PHP 4.3.0 não suportam acesso a arquivos remotos através desta função, mesmo se <A HREF="ref.filesystem.html#ini.allow-url-fopen" >allow_url_fopen</A > estiver ativado. </P ></TD ></TR ></TABLE ></DIV ></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.imagecreatefromgif.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.imagecreatefrompng.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >imagecreatefromgif</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.image.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >imagecreatefrompng</TD ></TR ></TABLE ></DIV ></BODY ></HTML >