WordPress at a glance
function is not described

WP_Super_Cache_Rest_Update_Settings::set_value_by_key() protected WPSCache 1.0

Given a key and a value, set the value for that key, based on the configuration in the settings map.

{} It's a method of the class: WP_Super_Cache_Rest_Update_Settings{}

No Hooks.

Return

String/null.

Usage

// protected - for code of main (parent) or child class
$result = $this->set_value_by_key( $value, $key );
$value(mixed) (required)
$key(string) (required)

Code of WP_Super_Cache_Rest_Update_Settings::set_value_by_key() WPSCache 1.7.1

<?php
protected function set_value_by_key( $value, $key ) {

	$settings_map = WP_Super_Cache_Settings_Map::$map;

	// If this parameter isn't in the map, then let's ignore it.
	if ( ! isset( $settings_map[ $key ] ) ) {
		return null;
	}

	$map = $settings_map[ $key ];

	if ( isset( $map['set'] ) ) {
		if ( method_exists( $this, $map['set'] ) ) {
			$has_error = call_user_func( array( $this, $map['set'] ), $value, $key );

		} elseif ( function_exists( $map['set'] ) ) {
			$has_error = call_user_func( $map['set'], $value );

		}
	} elseif ( isset( $map['global'] ) ) {

		$set_method = method_exists( $this, 'set_' . $map['global'] ) ?
			'set_' . $map['global'] : 'set_global';
		if ( $set_method == 'set_global' ) {
			$has_error  = call_user_func( array( $this, $set_method ), $key, $value );
		} else {
			$has_error  = call_user_func( array( $this, $set_method ), $value );
		}
	}

	if ( ! empty( $has_error ) ) {
		return $has_error;
	}

	return null;
}