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<HTML
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><H1
><A
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>count</A
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><DIV
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><A
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></A
><P
> (PHP3 , PHP4 )</P
>count -- Count elements in a variable</DIV
><DIV
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><A
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></A
><H2
>Description</H2
><DIV
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><A
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></A
><P
></P
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="function"
>count</B
></CODE
> (mixed var)</CODE
></P
><P
></P
></DIV
><P
> Returns the number of elements in <TT
CLASS="parameter"
><I
>var</I
></TT
>,
which is typically an array (since anything else will have one
element).
</P
><P
> Returns 1 if the variable is not an array.
</P
><P
> Returns 0 if the variable is not set.
<DIV
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><P
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><TABLE
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>Warning</B
></TD
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><TR
><TD
ALIGN="LEFT"
><P
> <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.
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>
</P
><P
> See also: <A
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><B
CLASS="function"
>sizeof()</B
></A
>,
<A
HREF="function.isset.html"
><B
CLASS="function"
>isset()</B
></A
>, and
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><B
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>is_array()</B
></A
>.
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