Using the configuration class to define CodeIgniter global variables _php Tutorial

Public functions in CodeIgniter cannot be appended and can be implemented by helper helpers.
Create a common_helper.php file, define the required public functions, and store them in the Application/helpers directory.
Configure the $autoload in application/config/autoload.php [' helper '] = Array (' common '); Can.

Global variables can also be implemented with helper functions. However, a more appropriate approach may be defined by the configuration class .

The CodeIgniter default has a master configuration file located in the application/config/config.php path, which defines a heap of frame-level global configurations, an array of names called $config.

If you need to add global configuration items that can be implemented in this file, consider the separation of custom configuration and framework configuration, it is recommended to create a new file vars.php, and then do the following definition:

Copy the Code code as follows:/**
* Working Directory Configuration
*/
$config [' src '] [' cache '] = Fcpath. '.. /src/cache ';
$config [' src '] [' modules '] = Fcpath. '.. /src/modules ';
$config [' src '] [' www '] = fcpath. '.. /src/www ';
When used, read through the controller in the following code:

$SRC = $this->config->item (' src ');
$cache = $src [' Cache ']

Or:

Copy the code as follows: $src = $this->config->item (' cache ', ' src ');
Of course, you need to automatically load this configuration file in application/config/autoload.php.

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