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Diffstat (limited to 'user_guide_src/source/libraries/loader.rst')
| -rw-r--r-- | user_guide_src/source/libraries/loader.rst | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/user_guide_src/source/libraries/loader.rst b/user_guide_src/source/libraries/loader.rst index 1597bf1c8..19446a9c8 100644 --- a/user_guide_src/source/libraries/loader.rst +++ b/user_guide_src/source/libraries/loader.rst @@ -261,6 +261,32 @@ $this->load->config('file_name') This method is an alias of the :doc:`config file loading method <config>`: ``$this->config->load()`` +$this->load->is_loaded('library_name') +====================================== + +The ``is_loaded()`` method allows you to check if a class has already +been loaded or not. + +.. note:: The word "class" here refers to libraries and drivers. + +If the requested class has been loaded, the method returns its assigned +name in the CI Super-object and FALSE if it's not:: + + $this->load->library('form_validation'); + $this->load->is_loaded('Form_validation'); // returns 'form_validation' + + $this->load->is_loaded('Nonexistent_library'); // returns FALSE + +.. important:: If you have more than one instance of a class (assigned to + different properties), then the first one will be returned. + +:: + + $this->load->library('form_validation', $config, 'fv'); + $this->load->library('form_validation'); + + $this->load->is_loaded('Form_validation'); // returns 'fv' + Application "Packages" ====================== |