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php-manual-pt_BR-5.2.4-1mdv2008.1.noarch.rpm

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>filter_input</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN51557"
></A
><P
>    (no version information, might be only in CVS)</P
>filter_input&nbsp;--&nbsp;Gets variable from outside PHP and optionally filters it</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN51560"
></A
><H2
>Descrição</H2
>mixed <B
CLASS="methodname"
>filter_input</B
> ( int type, string variable_name [, int filter [, mixed options]] )<BR
></BR
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN51577"
></A
><H2
>Parâmetros</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>type</CODE
></DT
><DD
><P
>&#13;       One of <TT
CLASS="constant"
><B
>INPUT_GET</B
></TT
>, <TT
CLASS="constant"
><B
>INPUT_POST</B
></TT
>,
       <TT
CLASS="constant"
><B
>INPUT_COOKIE</B
></TT
>, <TT
CLASS="constant"
><B
>INPUT_SERVER</B
></TT
>,
       <TT
CLASS="constant"
><B
>INPUT_ENV</B
></TT
>, <TT
CLASS="constant"
><B
>INPUT_SESSION</B
></TT
> (not
       implemented yet) and <TT
CLASS="constant"
><B
>INPUT_REQUEST</B
></TT
> (not
       implemented yet).
      </P
></DD
><DT
><CODE
CLASS="parameter"
>variable_name</CODE
></DT
><DD
><P
>&#13;       Name of a variable to get.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>filter</CODE
></DT
><DD
><P
>&#13;       Filter to apply. Defaults to <TT
CLASS="constant"
><B
>FILTER_DEFAULT</B
></TT
>.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>options</CODE
></DT
><DD
><P
>&#13;       Associative array of options or bitwise disjunction of flags. If filter
       accepts options, flags can be provided in "flags" field of array.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN51609"
></A
><H2
>Valores de retornado</H2
><P
>&#13;   Value of the requested variable on success, <TT
CLASS="constant"
><B
>FALSE</B
></TT
> if the filter fails,
   or <TT
CLASS="constant"
><B
>NULL</B
></TT
> if the <CODE
CLASS="parameter"
>variable_name</CODE
> variable is not set.
   If the flag <TT
CLASS="constant"
><B
>FILTER_NULL_ON_FAILURE</B
></TT
> is used, it
   returns <TT
CLASS="constant"
><B
>FALSE</B
></TT
> if the variable is not set and <TT
CLASS="constant"
><B
>NULL</B
></TT
> if the filter fails.
   </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN51618"
></A
><H2
>Exemplos</H2
><P
>&#13;   <TABLE
WIDTH="100%"
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN51621"
></A
><P
><B
>Exemplo 1. A <B
CLASS="function"
>filter_input()</B
> example</B
></P
><TABLE
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><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$search_html </font><font color="#007700">= </font><font color="#0000BB">filter_input</font><font color="#007700">(</font><font color="#0000BB">INPUT_GET</font><font color="#007700">, </font><font color="#DD0000">'search'</font><font color="#007700">, </font><font color="#0000BB">FILTER_SANITIZE_SPECIAL_CHARS</font><font color="#007700">);<br /></font><font color="#0000BB">$search_url </font><font color="#007700">= </font><font color="#0000BB">filter_input</font><font color="#007700">(</font><font color="#0000BB">INPUT_GET</font><font color="#007700">, </font><font color="#DD0000">'search'</font><font color="#007700">, </font><font color="#0000BB">FILTER_SANITIZE_ENCODED</font><font color="#007700">);<br />echo </font><font color="#DD0000">"You have searched for $search_html.</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br />echo </font><font color="#DD0000">"&lt;a href='?search=$search_url'&gt;Search again.&lt;/a&gt;"</font><font color="#007700">;<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
><P
>O exemplo acima irá imprimir
 algo similar a:</P
><TABLE
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><TR
><TD
><PRE
CLASS="screen"
>You have searched for Me &#38;#38; son.
&#60;a href='?search=Me%20%26%20son'&#62;Search again.&#60;/a&#62;</PRE
></TD
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></DIV
></TD
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN51627"
></A
><H2
>Veja também</H2
><P
>&#13;   <P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><A
HREF="function.filter-var.html"
><B
CLASS="function"
>filter_var()</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
><A
HREF="function.filter-var-array.html"
><B
CLASS="function"
>filter_var_array()</B
></A
></TD
></TR
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></P
>
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