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>ctype_alpha</H1
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><P
> (PHP 4 >= 4.0.4)</P
>ctype_alpha -- Check for alphabetic character(s)</DIV
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><H2
>Description</H2
>bool <B
CLASS="methodname"
>ctype_alpha</B
> ( string text)<BR
></BR
><P
> Returns <TT
CLASS="constant"
><B
>TRUE</B
></TT
> if every character in <TT
CLASS="parameter"
><I
>text</I
></TT
> is
a letter from the current locale, <TT
CLASS="constant"
><B
>FALSE</B
></TT
> otherwise.
In the standard <TT
CLASS="literal"
>C</TT
> locale letters are just
<TT
CLASS="literal"
>[A-Za-z]</TT
> and <B
CLASS="function"
>ctype_alpha()</B
> is
equivalent to <TT
CLASS="literal"
>(ctype_upper($text) || ctype_lower($text))</TT
>,
but other languages have letters that are considered neither upper nor
lower case.
</P
><P
> See also <A
HREF="function.ctype-upper.html"
><B
CLASS="function"
>ctype_upper()</B
></A
>,
<A
HREF="function.ctype-lower.html"
><B
CLASS="function"
>ctype_lower()</B
></A
>, and
<A
HREF="function.setlocale.html"
><B
CLASS="function"
>setlocale()</B
></A
>.
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