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

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>str_word_count</H1
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>    (PHP 4 &#62;= 4.3.0, PHP 5)</P
>str_word_count&nbsp;--&nbsp;
     Retorna informação sobre as palavras usadas em uma string
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>Descrição</H2
>mixed <B
CLASS="methodname"
>str_word_count</B
> ( string string [, int formato] )<BR
></BR
><P
>&#13;     Conta o número de palavras dentro de <CODE
CLASS="parameter"
>string</CODE
>. 
     Se o <CODE
CLASS="parameter"
>formato</CODE
> opcional não é especificado, então
     o valor de retorno será um inteiro representando o número de palavras encontrado.
      No no caso de o  <CODE
CLASS="parameter"
>formato</CODE
> está especificado, o valor de retorno
      será um array, cujo conteúdo é dependente do <CODE
CLASS="parameter"
>formato</CODE
>. 
      O valor possível para o <CODE
CLASS="parameter"
>format</CODE
> e as saídas resultantes são
      listadas abaixo.
     <P
></P
><UL
><LI
><P
>&#13;        1 - retorna um array contendo todas as palavras encontradas dentro de
        <CODE
CLASS="parameter"
>string</CODE
>.
       </P
></LI
><LI
><P
>&#13;        2 - retorna um array associativo, onde a chave é a posição numérica da palavra
        dentro da <CODE
CLASS="parameter"
>string</CODE
> e 
        o valor é a própria palavra.
       </P
></LI
></UL
>
    </P
><P
>&#13;     Devido ao propósito desta função, 'word' é definida como uma string dependente da localidade
     contendo caracteres alfanuméricos, que também contém, mas não inicia com os caracteres 
     "'" and "-".
    </P
><P
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><B
>Exemplo 1. Exemplo que usa <B
CLASS="function"
>str_word_count()</B
></B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br />$str </font><font color="#007700">= </font><font color="#DD0000">"Hello friend, you're<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;looking&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;good today!"</font><font color="#007700">;<br /><br /></font><font color="#0000BB">$a&nbsp;&nbsp;&nbsp;</font><font color="#007700">= </font><font color="#0000BB">str_word_count</font><font color="#007700">(</font><font color="#0000BB">$str</font><font color="#007700">, </font><font color="#0000BB">1</font><font color="#007700">);<br /></font><font color="#0000BB">$b&nbsp;&nbsp;&nbsp;</font><font color="#007700">= </font><font color="#0000BB">str_word_count</font><font color="#007700">(</font><font color="#0000BB">$str</font><font color="#007700">, </font><font color="#0000BB">2</font><font color="#007700">);<br /></font><font color="#0000BB">$c&nbsp;&nbsp;&nbsp;</font><font color="#007700">= </font><font color="#0000BB">str_word_count</font><font color="#007700">(</font><font color="#0000BB">$str</font><font color="#007700">);<br /><br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">$a</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">$b</font><font color="#007700">);<br />print </font><font color="#0000BB">$c</font><font color="#007700">;<br /><br /></font><font color="#FF8000">/* a saída pode ser:<br /><br />Array<br />(<br />&nbsp;&nbsp;&nbsp;&nbsp;[0] =&gt; Hello<br />&nbsp;&nbsp;&nbsp;&nbsp;[1] =&gt; friend<br />&nbsp;&nbsp;&nbsp;&nbsp;[2] =&gt; you're<br />&nbsp;&nbsp;&nbsp;&nbsp;[3] =&gt; looking<br />&nbsp;&nbsp;&nbsp;&nbsp;[4] =&gt; good<br />&nbsp;&nbsp;&nbsp;&nbsp;[5] =&gt; today<br />)<br /><br />Array<br />(<br />&nbsp;&nbsp;&nbsp;&nbsp;[0] =&gt; Hello<br />&nbsp;&nbsp;&nbsp;&nbsp;[6] =&gt; friend<br />&nbsp;&nbsp;&nbsp;&nbsp;[14] =&gt; you're<br />&nbsp;&nbsp;&nbsp;&nbsp;[29] =&gt; looking<br />&nbsp;&nbsp;&nbsp;&nbsp;[46] =&gt; good<br />&nbsp;&nbsp;&nbsp;&nbsp;[51] =&gt; today<br />)<br /><br />6<br /><br />*/<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
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><P
>&#13;     Veja também <A
HREF="function.explode.html"
><B
CLASS="function"
>explode()</B
></A
>,
     <A
HREF="function.preg-split.html"
><B
CLASS="function"
>preg_split()</B
></A
>,
     <A
HREF="function.split.html"
><B
CLASS="function"
>split()</B
></A
>,
     <A
HREF="function.count-chars.html"
><B
CLASS="function"
>count_chars()</B
></A
>, e
     <A
HREF="function.substr-count.html"
><B
CLASS="function"
>substr_count()</B
></A
>.
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