Sophie: php-manual-en-4.3.0-2mdk noarch

php-manual-en-4.3.0-2mdk.noarch.rpm

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>extension_loaded</H1
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><P
>    (PHP 3&#62;= 3.0.10, PHP 4 )</P
>extension_loaded&nbsp;--&nbsp;Find out whether an extension is loaded</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN73546"
></A
><H2
>Description</H2
>bool <B
CLASS="methodname"
>extension_loaded</B
> ( string name)<BR
></BR
><P
>&#13;     Returns <TT
CLASS="constant"
><B
>TRUE</B
></TT
> if the extension identified by <TT
CLASS="parameter"
><I
>name</I
></TT
>
     is loaded, <TT
CLASS="constant"
><B
>FALSE</B
></TT
> otherwise.
    </P
><P
>&#13;     Example:
     <TABLE
BORDER="0"
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CELLPADDING="5"
><TR
><TD
><PRE
CLASS="php"
>if (!extension_loaded('gd')) {
    if (!dl('gd.so')) {
        exit;
    }
}</PRE
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>
    </P
><P
>&#13;     You can see the names of various extensions by using
     <A
HREF="function.phpinfo.html"
><B
CLASS="function"
>phpinfo()</B
></A
> or if you're usnig the
     <TT
CLASS="literal"
>CGI</TT
> or <TT
CLASS="literal"
>CLI</TT
> version of
     <TT
CLASS="literal"
>PHP</TT
> you can use the <TT
CLASS="literal"
>-m</TT
> switch to
     list all available extensions:
     <TABLE
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><TR
><TD
><PRE
CLASS="screen"
>$ php -m
[PHP Modules]
xml
tokenizer
standard
sockets
session
posix
pcre
overload
mysql
mbstring
ctype

[Zend Modules]</PRE
></TD
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>
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
      <B
CLASS="function"
>extension_loaded()</B
> uses the internal extension name
      to test whether a certain extension is available or not. Most internal
      extension names are written in lower case but there may be extension
      available which also use uppercase letters. Be warned that this
      function compares <SPAN
CLASS="strong"
><B
CLASS="emphasis"
>case sensitive</B
></SPAN
> !
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;     See also <A
HREF="function.get-loaded-extensions.html"
><B
CLASS="function"
>get_loaded_extensions()</B
></A
>,
     <A
HREF="function.get-extension-funcs.html"
><B
CLASS="function"
>get_extension_funcs()</B
></A
>,
     <A
HREF="function.phpinfo.html"
><B
CLASS="function"
>phpinfo()</B
></A
> and <A
HREF="function.dl.html"
><B
CLASS="function"
>dl()</B
></A
>.
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