Data can be saved in the shop database without requiring a module specific table to be created.
The table configuration contains a list of key => value(s) properties which can
be accessed from anywhere, including in a module.
The Configuration class is the interface allowing each module developer to
get or store data in this table.
<?php
Configuration::updateValue(string $key, mixed $value);
$key will be the reference to your data to reuse later.
$value can be any scalar type (int, string, bool, array…).
<?php
Configuration::hasKey(string $key);
$key is the name of the configuration data to check. The method returns true
if the data exists, false otherwise.
<?php
Configuration::get(string $key);
With $key as the data to retrieve.
If the key does not exist, the returned value will be null.
Example:
<?php
Configuration::get('PS_VERSION_DB');
// returns '1.7.4.0'
<?php
Configuration::getMultiple(array $keys);
With $keys as an array of keys to retrieve.
This returns an array, containing the values stored in the configuration table or null if a key does not exist.
Example:
<?php
Configuration::getMultiple(array('PS_VERSION_DB', 'UNKNOWN_KEY'));
// returns this array:
array(
'PS_VERSION_DB' => '1.7.4.0',
'UNKNOWN_KEY' => null,
)