Updating custom options in WordPress using the update_option function

The update_option function in WordPress is used to update the value of an existing option in the WordPress options table. This function is useful for modifying settings, configurations, or any other data stored as options in the WordPress database.

By using the update_option function, developers can easily update the value of a specific option without having to manually interact with the database. This can streamline the process of managing and updating site settings, and ensure that changes are made consistently and accurately.

Parameters Accepted by the WordPress update_option Function

The update_option function accepts the following parameters:

  • $option (string, required): Name of the option to update. This value is expected to not be SQL-escaped.
  • $value (mixed, required): Option value. This value must be serializable if non-scalar and is expected to not be SQL-escaped.
  • $autoload (string/bool, optional, default: null): Whether to load the option when WordPress starts up.

Value Returned by the WordPress update_option Function

The update_option function returns a boolean value. It returns true if the value was successfully updated, and false otherwise.

Examples

How to update an option with a string value

<?php
update_option('my_option', 'Hello, world!');
?>

This code snippet updates the option with the name 'my_option' with the string value 'Hello, world!'.

How to update an option with an array value

<?php
$new_option_value = array(
 'key1' => 'value1',
 'key2' => 'value2'
);
update_option('my_array_option', $new_option_value);
?>

This code snippet updates the option with the name 'my_array_option' with an array value containing keys and their respective values.

How to update an option only if it does not exist

<?php
if (false === get_option('my_option')) {
 update_option('my_option', 'default_value');
}
?>

This code snippet checks if the option with the name 'my_option' does not exist using the get_option function, and if it doesn’t, it updates the option with the value 'default_value'.

Conclusion

In conclusion, the update_option function is an effective feature for developers working with WordPress. It allows for the easy updating of options in the database, providing a seamless way to manage and customize settings for themes, plugins, and other aspects of a WordPress site. By utilizing this function, developers can ensure that their code is efficient, maintainable, and secure. With its simple syntax and wide range of applications, update_option is an essential function for any WordPress developer’s toolkit.

Related WordPress Functions

in WordPress Functions