<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >date_default_timezone_set</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="Data e hora" HREF="ref.datetime.html"><LINK REL="PREVIOUS" TITLE="date_default_timezone_get" HREF="function.date-default-timezone-get.html"><LINK REL="NEXT" TITLE="date_format" HREF="function.date-format.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.date-default-timezone-get.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.date-format.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.date-default-timezone-set" ></A >date_default_timezone_set</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN25414" ></A ><P > (PHP 5 >= 5.1.0RC1)</P >date_default_timezone_set -- Sets the default timezone used by all date/time functions in a script </DIV ><DIV CLASS="refsect1" ><A NAME="AEN25417" ></A ><H2 >Descrição</H2 >bool <B CLASS="methodname" >date_default_timezone_set</B > ( string timezone_identifier )<BR ></BR ><P > <B CLASS="function" >date_default_timezone_set()</B > sets the default timezone used by all date/time functions. </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >Nota: </B > Since PHP 5.1.0 (when the date/time functions were rewritten), every call to a date/time function will generate a <TT CLASS="constant" ><B >E_NOTICE</B ></TT > if the timezone isn't valid, and/or a <TT CLASS="constant" ><B >E_STRICT</B ></TT > message if using the system settings or the <CODE CLASS="varname" >TZ</CODE > environment variable. </P ></BLOCKQUOTE ></DIV ><P > Instead of using this function to set the default timezone in your script, you can also use the INI setting <A HREF="missing-stuff.html#ini.date.timezone" >date.timezone</A > to set the default timezone. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN25434" ></A ><H2 >Parâmetros</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >timezone_identifier</CODE ></DT ><DD ><P > The timezone identifier, like <TT CLASS="literal" >UTC</TT > or <TT CLASS="literal" >Europe/Lisbon</TT >. The list of valid identifiers is available in the <A HREF="timezones.html" >Apêndice I</A >. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN25446" ></A ><H2 >Valores de retornado</H2 ><P > This function returns <TT CLASS="constant" ><B >FALSE</B ></TT > if the <CODE CLASS="parameter" >timezone_identifier</CODE > isn't valid, or <TT CLASS="constant" ><B >TRUE</B ></TT > otherwise. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN25452" ></A ><H2 >Histórico</H2 ><P > <DIV CLASS="informaltable" ><P ></P ><A NAME="AEN25455" ></A ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><THEAD ><TR ><TH >Versão</TH ><TH >Descrição</TH ></TR ></THEAD ><TBODY ><TR ><TD >5.1.2</TD ><TD > The function started to validate the <CODE CLASS="parameter" >timezone_identifier</CODE > parameter. </TD ></TR ></TBODY ></TABLE ><P ></P ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN25466" ></A ><H2 >Veja também</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.date-default-timezone-get.html" ><B CLASS="function" >date_default_timezone_get()</B ></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.date-default-timezone-get.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.date-format.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >date_default_timezone_get</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.datetime.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >date_format</TD ></TR ></TABLE ></DIV ></BODY ></HTML >