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

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

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>getenv</H1
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>    (PHP 3, PHP 4 , PHP 5)</P
>getenv&nbsp;--&nbsp;Gets the value of an environment variable</DIV
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><H2
>Description</H2
>string <B
CLASS="methodname"
>getenv</B
> ( string varname)<BR
></BR
><P
>&#13;     Returns the value of the environment variable
     <VAR
CLASS="parameter"
>varname</VAR
>, or <TT
CLASS="constant"
><B
>FALSE</B
></TT
> on an error.
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$ip </font><font color="#007700">= </font><font color="#0000BB">getenv</font><font color="#007700">(</font><font color="#DD0000">"REMOTE_ADDR"</font><font color="#007700">); </font><font color="#FF8000">// get the ip number of the user<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
    </P
><P
>&#13;     You can see a list of all the environmental variables by using
     <A
HREF="function.phpinfo.html"
><B
CLASS="function"
>phpinfo()</B
></A
>. You can find out what many of them
     mean by taking a look at the <A
HREF="http://hoohoo.ncsa.uiuc.edu/cgi/"
TARGET="_top"
>CGI
     specification</A
>, specifically the <A
HREF="http://hoohoo.ncsa.uiuc.edu/cgi/env.html"
TARGET="_top"
>page on environmental variables</A
>.
    </P
><P
>&#13;     <DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Not&#227;: </B
>
       This function does not work in ISAPI mode.
      </P
></BLOCKQUOTE
></DIV
>
    </P
><P
>&#13;     See also <A
HREF="function.putenv.html"
><B
CLASS="function"
>putenv()</B
></A
>.
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