/**
* Define some constants by reading a PHP array of keys and values.
* Note that the constant names will always be uppercase.
* By setting a "prefix" option, constant names can be "DB_*" for example.
* If you've defined your own constants, you should call this function
* without any parameters to update the cache of user-defined constants.
*
* @param Array $array optional array of constant names and values
* @param Array $options optional settings such as "prefix" and "suffix"
*/
public static function define_constants($array = array(), $options = array())
{
// Define some new constants
foreach ($array as $key => $value) {
$prefix = array_key($options, 'prefix', '');
$suffix = array_key($options, 'suffix', '');
if (is_array($value)) {
$value = join(', ', $value);
}
$name = strtoupper($prefix . $key . $suffix);
if (!defined($name)) {
define($name, $value);
}
}
// Update the cache of user-defined constants, and return it
self::$constants = array_key(get_defined_constants(TRUE), 'user');
return self::get_constants();
}
