Developer's Manual  Function Reference  Working with server variables  getServerVar

getServerVar

Returns value of requested variable from HTTP_SERVER_VARS array.


mixed getServerVar(string variable_name [, mixed default_value])

The function getServerVar returns the value of requested variable from HTTP_SERVER_VARS or default_value if the variable doesn't exist. If default_value is omitted the function returns zero.

Example

<?
$docRoot = getServerVar('DOCUMENT_ROOT');
if($docRoot)
    echo "Your document root is: " . $docRoot;
?>
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