<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >filter_var</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="Filter Functions" HREF="ref.filter.html"><LINK REL="PREVIOUS" TITLE="filter_var_array" HREF="function.filter-var-array.html"><LINK REL="NEXT" TITLE="Firebird/InterBase" HREF="ref.ibase.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.filter-var-array.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="ref.ibase.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.filter-var" ></A >filter_var</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN51724" ></A ><P > (no version information, might be only in CVS)</P >filter_var -- Filters a variable with a specified filter</DIV ><DIV CLASS="refsect1" ><A NAME="AEN51727" ></A ><H2 >Descrição</H2 >mixed <B CLASS="methodname" >filter_var</B > ( mixed variable [, int filter [, mixed options]] )<BR ></BR ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN51741" ></A ><H2 >Parâmetros</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >variable</CODE ></DT ><DD ><P > Value to filter, arrays are filtered recursively. </P ></DD ><DT ><CODE CLASS="parameter" >filter</CODE ></DT ><DD ><P > ID of a filter to use. Defaults to <TT CLASS="constant" ><B >FILTER_SANITIZE_STRING</B ></TT >. </P ></DD ><DT ><CODE CLASS="parameter" >options</CODE ></DT ><DD ><P > Associative array of options or bitwise disjunction of flags. If filter accepts options, flags can be provided in "flags" field of array. For the "callback" filter, <A HREF="language.pseudo-types.html#language.types.callback" ><B CLASS="type" >callback</B ></A > type should be passed. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN51762" ></A ><H2 >Valores de retornado</H2 ><P > Returns the filtered data, or <TT CLASS="constant" ><B >FALSE</B ></TT > if the filter fails. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN51766" ></A ><H2 >Exemplos</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN51769" ></A ><P ><B >Exemplo 1. A <B CLASS="function" >filter_var()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />var_dump</font><font color="#007700">(</font><font color="#0000BB">filter_var</font><font color="#007700">(</font><font color="#DD0000">'bob@example.com'</font><font color="#007700">, </font><font color="#0000BB">FILTER_VALIDATE_EMAIL</font><font color="#007700">));<br /></font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">filter_var</font><font color="#007700">(</font><font color="#DD0000">'example.com'</font><font color="#007700">, </font><font color="#0000BB">FILTER_VALIDATE_URL</font><font color="#007700">, </font><font color="#0000BB">FILTER_FLAG_SCHEME_REQUIRED</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" >string(15) "bob@example.com" bool(false)</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN51775" ></A ><H2 >Veja também</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.filter-var-array.html" ><B CLASS="function" >filter_var_array()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.filter-input.html" ><B CLASS="function" >filter_input()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.filter-input-array.html" ><B CLASS="function" >filter_input_array()</B ></A ></TD ></TR ><TR ><TD >informações sobre o tipo <A HREF="language.pseudo-types.html#language.types.callback" >callback</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.filter-var-array.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="ref.ibase.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >filter_var_array</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.filter.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Firebird/InterBase</TD ></TR ></TABLE ></DIV ></BODY ></HTML >