#float http\QueryString::getFloat(string $name[, mixed $defval = NULL[, bool $delete = false)

Retrieve a float value at offset $name.

Params:#

• string $name#
  The key to look up.
• Optional mixed $defval# = NULL
  The default value to return if the offset $name does not exist.
• Optional bool $delete# = false
  Whether to remove the key and value from the querystring after retrieval.

Returns:#

• float, the (casted) value.
• mixed, $defval if offset $name does not exist.