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>get_cfg_var</H1
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><P
> (PHP 3, PHP 4, PHP 5)</P
>get_cfg_var -- Gets the value of a PHP configuration option</DIV
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><H2
>说明</H2
>string <B
CLASS="methodname"
>get_cfg_var</B
> ( string option )<BR
></BR
><P
> Gets the value of a PHP configuration <CODE
CLASS="parameter"
>option</CODE
>.
</P
><P
> This function will not return configuration information set when the PHP
was compiled, or read from an Apache configuration file (using the
php3_configuration_option directives).
</P
><P
> To check whether the system is using a <A
HREF="configuration.html#configuration.file"
>configuration file</A
>, try retrieving the
value of the cfg_file_path configuration setting. If this is available, a
configuration file is being used.
</P
></DIV
><DIV
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><A
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></A
><H2
>参数</H2
><P
> <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>option</CODE
></DT
><DD
><P
> The configuration option name.
</P
></DD
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN180809"
></A
><H2
>返回值</H2
><P
> Returns the current value of the PHP configuration variable specified by
<CODE
CLASS="parameter"
>varname</CODE
>, or <TT
CLASS="constant"
><B
>FALSE</B
></TT
> if an error occurs.
</P
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><H2
>参见</H2
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