Sophie: php-manual-ro-0:20051028-1 noarch

php-manual-ro-20051028-1.noarch.rpm

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>count</H1
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>    (PHP 3, PHP 4 , PHP 5)</P
>count&nbsp;--&nbsp;Count elements in a variable</DIV
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><H2
>Description</H2
>int <B
CLASS="methodname"
>count</B
> ( mixed var)<BR
></BR
><P
>&#13;     Returns the number of elements in <VAR
CLASS="parameter"
>var</VAR
>,
     which is typically an <A
HREF="language.types.array.html"
><B
CLASS="type"
>array</B
></A
> (since anything else will have
     one element).
    </P
><P
>&#13;     If <VAR
CLASS="parameter"
>var</VAR
> is not an array, <VAR
CLASS="literal"
>1</VAR
> will
     be returned (exception: <VAR
CLASS="literal"
>count(<TT
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>NULL</B
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>)</VAR
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     <VAR
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>&#13;      <B
CLASS="function"
>count()</B
> may return 0 for a variable that
      isn't set, but it may also return 0 for a variable that has
      been initialized with an empty array. Use
      <A
HREF="function.isset.html"
><B
CLASS="function"
>isset()</B
></A
> to test if a variable is set.
     </P
></TD
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><P
>&#13;     Please see the <A
HREF="language.types.array.html"
>Arrays</A
>
     section of the manual for a detailed explanation of how arrays
     are implemented and used in PHP.
    </P
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>Exemplu 1. <B
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>count()</B
> example</B
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><code><font color="#000000">
$a[0] = 1;<br />$a[1] = 3;<br />$a[2] = 5;<br />$result = count ($a);<br />// $result == 3<br /><br />$b[0] = 7;<br />$b[5] = 9;<br />$b[10] = 11;<br />$result = count ($b);<br />// $result == 3;</font>
</code></TD
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    </P
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><B
>Not&#227;: </B
>
     The <A
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><B
CLASS="function"
>sizeof()</B
></A
> function is an
     <A
HREF="aliases.html"
>alias</A
> for <B
CLASS="function"
>count()</B
>.
    </P
></BLOCKQUOTE
></DIV
><P
>&#13;     See also <A
HREF="function.is-array.html"
><B
CLASS="function"
>is_array()</B
></A
>,
     <A
HREF="function.isset.html"
><B
CLASS="function"
>isset()</B
></A
>, and
     <A
HREF="function.strlen.html"
><B
CLASS="function"
>strlen()</B
></A
>.
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