How to modify laravel configuration to implement default 0 as null value function

Laravel is a very popular PHP framework that has been widely used in web development in recent years. However, when we use the Laravel framework to perform MySQL database operations, we find that fields that default to 0 cannot be correctly stored as null values, which causes trouble to many developers.

In Laravel, you can implement the function of defaulting to 0 as a null value by modifying the MySQL configuration file and modifying the configuration file in the Laravel project. Below we will explain how to do it one by one.

Modify the MySQL configuration file

The default value of 0 can be achieved by modifying the MySQL configuration file. First, you need to open the MySQL configuration file, which is generally located in the MySQL installation directory and is named my.cnf or my.ini. Then add the following code at the end of the file:

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

This code will disable the strict mode in MySQL and make MySQL more flexible. Then save the file and restart the MySQL service. After completing the above operation, you can try to assign the field with a default value of 0 to null, and the field will be stored as a null value.

Modify Laravel configuration file

Another way is to modify the configuration file of the Laravel project to achieve a default value of 0 as null. Open the configuration file config/database.php in the Laravel project, find the corresponding MySQL connection information, and add the following configuration to the config array:

'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
'strict' => false,
'modes' => [
    //'ONLY_FULL_GROUP_BY',
    'STRICT_TRANS_TABLES',
    'NO_ZERO_IN_DATE',
    'NO_ZERO_DATE',
    //'ERROR_FOR_DIVISION_BY_ZERO',
    'NO_ENGINE_SUBSTITUTION',
],

Among them, the items in the modes array are MySQL strict mode Some options, turn off the corresponding strict mode by setting it to false. Then, re-run the Laravel project, and the fields that default to 0 will be correctly stored as null values.

In summary, whether you modify the MySQL configuration file or the Laravel configuration file, you can implement the function of defaulting to 0 as a null value. For a framework like Laravel, the operation of MySQL needs to be more flexible and convenient, so developers need to master some such skills.

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