1 config.inc config_clear($config_file, $option)

A shortcut function to delete a single value from a config file.

Note that this function immediately writes the config file to disk and clears associated caches related to the new config. If deleting a number of options in the same configuration file, it is better to create a config object directly, delete all the necessary values, and then save the config file minus new options all at once.

@since 1.7.0


string $config_file: The name of the configuration object to retrieve. The name corresponds to an JSON configuration file. For


, the config object returned will contain the contents of book.admin.json.

string $option: The name of the config option within the file to delete. The config option may contain periods to indicate levels within the config file.

See also




core/includes/config.inc, line 72
This is the API for configuration storage.


function config_clear($config_file, $option) {
  $config = config($config_file);