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

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>apc_define_constants</H1
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NAME="AEN8905"
></A
><P
>    (PECL)</P
>apc_define_constants&nbsp;--&nbsp;
   Define um conjunto de constantes para uso posterior e definição em massa
  </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN8908"
></A
><H2
>Descrição</H2
>bool <B
CLASS="methodname"
>apc_define_constants</B
> ( string key, array constants [, bool case_sensitive] )<BR
></BR
><P
>&#13;   <A
HREF="function.define.html"
><B
CLASS="function"
>define()</B
></A
> é notoriamente lento. Já que o benefício do
   APC é aumentar a performance de scripts/aplicações, esse mecanismo é
   disponibilizado para automatizar o processo de definição de constantes em massa.
  </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Nota: </B
>
    Para remover um conjunto de constantes guardadas (sem limpar o cache inteiro), um
    array vazio pode ser passado como parâmetro de <CODE
CLASS="parameter"
>constants</CODE
>,
    efetivamente limpando os valore(s) guardado(s).
   </P
></BLOCKQUOTE
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN8927"
></A
><H2
>Parâmetros</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>key</CODE
></DT
><DD
><P
>&#13;       A <CODE
CLASS="parameter"
>key</CODE
> serve de nome para a constante
       sendo guardada. Essa <CODE
CLASS="parameter"
>key</CODE
> é usada para recuperar as
       constantes guardadas com <A
HREF="function.apc-load-constants.html"
><B
CLASS="function"
>apc_load_constants()</B
></A
>.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>constants</CODE
></DT
><DD
><P
>&#13;       Um array associativo de pares <TT
CLASS="literal"
>constant_name =&#62; value</TT
>.
       O <TT
CLASS="literal"
>constant_name</TT
> deve serguir as regras normais de
       nomenclatura de <A
HREF="language.constants.html"
>constantes</A
>.
       <TT
CLASS="literal"
>value</TT
> deve ser um valor escalar (string ou número).
      </P
></DD
><DT
><CODE
CLASS="parameter"
>case_sensitive</CODE
></DT
><DD
><P
>&#13;       O comportamento padrão para constantes é ser declarado sensíveis ao caso;
       ex.: <TT
CLASS="literal"
>CONSTANT</TT
> e <TT
CLASS="literal"
>Constant</TT
>
       representam valores diferentes. Se esse parâmetro tem valor <TT
CLASS="constant"
><B
>FALSE</B
></TT
> as
       constantes serão declaradas como símbolos insensíveis ao caso.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN8956"
></A
><H2
>Valores de retornado</H2
><P
>&#13;   Retorna <TT
CLASS="constant"
><B
>TRUE</B
></TT
> em caso de sucesso ou <TT
CLASS="constant"
><B
>FALSE</B
></TT
> em falhas.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN8961"
></A
><H2
>Exemplos</H2
><P
>&#13;   <TABLE
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NAME="AEN8964"
></A
><P
><B
>Exemplo 1. Exemplo de <B
CLASS="function"
>apc_define_constants()</B
></B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$constants </font><font color="#007700">= array(<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#DD0000">'ONE'&nbsp;&nbsp;&nbsp;</font><font color="#007700">=&gt; </font><font color="#0000BB">1</font><font color="#007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#DD0000">'TWO'&nbsp;&nbsp;&nbsp;</font><font color="#007700">=&gt; </font><font color="#0000BB">2</font><font color="#007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#DD0000">'THREE' </font><font color="#007700">=&gt; </font><font color="#0000BB">3</font><font color="#007700">,<br />);<br /></font><font color="#0000BB">apc_define_constants</font><font color="#007700">(</font><font color="#DD0000">'numbers'</font><font color="#007700">, </font><font color="#0000BB">$constants</font><font color="#007700">);<br /></font><font color="#0000BB">apc_load_constants</font><font color="#007700">(</font><font color="#DD0000">'numbers'</font><font color="#007700">);<br />echo </font><font color="#0000BB">ONE</font><font color="#007700">, </font><font color="#0000BB">TWO</font><font color="#007700">, </font><font color="#0000BB">THREE</font><font color="#007700">;<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
><P
>O exemplo acima irá imprimir:</P
><TABLE
BORDER="0"
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CELLPADDING="5"
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><TD
><PRE
CLASS="screen"
>123</PRE
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN8970"
></A
><H2
>Veja também</H2
><P
>&#13;   <P
></P
><TABLE
BORDER="0"
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><TR
><TD
><A
HREF="function.apc-load-constants.html"
><B
CLASS="function"
>apc_load_constants()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.define.html"
><B
CLASS="function"
>define()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.constant.html"
><B
CLASS="function"
>constant()</B
></A
></TD
></TR
><TR
><TD
>&#13;     Ou <A
HREF="language.constants.html"
>a referência de constantes do PHP</A
>
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