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Home > PrestaShop 9 > Core Reference > Components > Configuration storage > Backward compatibility

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Backward compatible configuration storage

PrestaShop 8 maintains the 1.6 configuration class for backward compatibility.

If you don’t need compatibility with 1.6 shops, we suggest using the Configuration service instead.

Usage

Store configuration data

Configuration::updateValue(string $key, mixed $value): bool

This method returns true if the operation is successful, false otherwise.

Parameters:

$key

Identifier to your data to reuse later. You can use any valid string, but by convention, identifiers are usually in ALL_CAPS_WITH_UNDERSCORES.

$value

Value to store. It can be any scalar type (int, float, string, bool).

Note: All values are stored as strings in database, so you might encounter type conversion issues if you save anything other than a string.

Use of arrays to store multi language values.

To store a value in multiple languages, You can provide an array indexed by language id:

[
    123 => 'Value in some language',
    456 => 'Value in some other language',
]

Note that this is the only supported use of arrays.

Check if a configuration data set exists

Configuration::hasKey(string $key): bool

This method returns true if the data exists, false otherwise.

Parameters:

$key: Identifier to check.

Retrieve configuration data

// static call
Configuration::get(string $key): mixed

This method returns the data for $key if it data exists, or NULL otherwise.

Parameters:

$key: Identifier to retrieve.

Delete configuration

Configuration::deleteByName(string $key)

This method returns true if the key is removed, false otherwise.

Parameters:

$key: Identifier to delete. Note that this method deletes the value for all shops.

Multistore

By default, all these methods work within the confines of the current store context, whether PrestaShop is using the multistore feature or not.

However, it is possible to work outside of the current context and impact configurations for all shops, a shop group or a single, specific shop. This is done using three optional parameters, which are not presented in the list above:

id_lang: enables you to force the language with which you want to work.
id_shop_group: enables you to indicate the shop group of the target store.
id_shop: enables you to indicate the id of the target store.