variable_get($name, $default)
drupal-4-6/includes/bootstrap.inc, line 151
Return a persistent variable.
$name The name of the variable to return.
$default The default value to use if this variable has never been set.
The value of the variable.
function variable_get($name, $default) {
global $conf;
return isset($conf[$name]) ? $conf[$name] : $default;
}