2020-05-02 / 2176阅 / 悠然
Determines whether a plugin is active.
Only plugins installed in the plugins/ folder can be active.
Plugins in the mu-plugins/ folder can’t be "activated," so this function will return false for those plugins.
For more information> Conditional Tags article in the Theme Developer Handbook.
Path to the plugin file relative to the plugins directory.
(bool) True, if in the active plugins list. False, not in the list.