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

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>strstr</H1
><DIV
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><A
NAME="AEN221722"
></A
><P
>    (PHP 3, PHP 4, PHP 5)</P
>strstr&nbsp;--&nbsp;Encontra a primeira ocorrencia de uma string</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN221725"
></A
><H2
>Descrição</H2
>string <B
CLASS="methodname"
>strstr</B
> ( string haystack, string needle )<BR
></BR
><P
>&#13;     Retorna parte da string <CODE
CLASS="parameter"
>haystack</CODE
>
     apartir da primeira ocorrencia de <CODE
CLASS="parameter"
>needle</CODE
> até o final de
     <CODE
CLASS="parameter"
>haystack</CODE
>.
    </P
><P
>&#13;     Se <CODE
CLASS="parameter"
>needle</CODE
> não é encontrado, retorna <TT
CLASS="constant"
><B
>FALSE</B
></TT
>.
    </P
><P
>&#13;     Se <CODE
CLASS="parameter"
>needle</CODE
> não é uma string, é convertido para um inteiro
     e aplicado o valor do caractere.
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Nota: </B
>
      Esta função diferencia maiúsculas e minúsculas. Para pesquisas que não diferenciem, use
      <A
HREF="function.stristr.html"
><B
CLASS="function"
>stristr()</B
></A
>.
     </P
></BLOCKQUOTE
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><DIV
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><A
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></A
><P
><B
>Exemplo 1. Exemplo <B
CLASS="function"
>strstr()</B
></B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$email </font><font color="#007700">= </font><font color="#DD0000">'user@example.com'</font><font color="#007700">;<br /></font><font color="#0000BB">$domain </font><font color="#007700">= </font><font color="#0000BB">strstr</font><font color="#007700">(</font><font color="#0000BB">$email</font><font color="#007700">, </font><font color="#DD0000">'@'</font><font color="#007700">);<br />print </font><font color="#0000BB">$domain</font><font color="#007700">; </font><font color="#FF8000">// mostra @example.com<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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></TD
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>
    </P
><P
>&#13;     <DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Nota: </B
>
       Se você somente quer determinar se <CODE
CLASS="parameter"
>needle</CODE
>
       ocorre em <CODE
CLASS="parameter"
>haystack</CODE
>, use ao invés a função mais rapida e com menor uso de memória
       <A
HREF="function.strpos.html"
><B
CLASS="function"
>strpos()</B
></A
>.
      </P
></BLOCKQUOTE
></DIV
>
    </P
><P
>&#13;     Veja também <A
HREF="function.ereg.html"
><B
CLASS="function"
>ereg()</B
></A
>, <A
HREF="function.preg-match.html"
><B
CLASS="function"
>preg_match()</B
></A
>,
     <A
HREF="function.strchr.html"
><B
CLASS="function"
>strchr()</B
></A
>, <A
HREF="function.stristr.html"
><B
CLASS="function"
>stristr()</B
></A
>,
     <A
HREF="function.strpos.html"
><B
CLASS="function"
>strpos()</B
></A
>, <A
HREF="function.strrchr.html"
><B
CLASS="function"
>strrchr()</B
></A
>, e
     <A
HREF="function.substr.html"
><B
CLASS="function"
>substr()</B
></A
>.
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