<?php
/**
* Option API
*
* @package WordPress
* @subpackage Option
*/
/**
* Retrieves an option value based on an option name.
*
* If the option does not exist, and a default value is not provided,
* boolean false is returned. This could be used to check whether you need
* to initialize an option during installation of a plugin, however that
* can be done better by using add_option() which will not overwrite
* existing options.
*
* Not initializing an option and using boolean `false` as a return value
* is a bad practice as it triggers an additional database query.
*
* The type of the returned value can be different from the type that was passed
* when saving or updating the option. If the option value was serialized,
* then it will be unserialized when it is returned. In this case the type will
* be the same. For example, storing a non-scalar value like an array will
* return the same array.
*
* In most cases non-string scalar and null values will be converted and returned
* as string equivalents.
*
* Exceptions:
*
* 1. When the option has not been saved in the database, the `$default_value` value
* is returned if provided. If not, boolean `false` is returned.
* 2. When one of the Options API filters is used: {@see 'pre_option_$option'},
* {@see 'default_option_$option'}, or {@see 'option_$option'}, the returned
* value may not match the expected type.
* 3. When the option has just been saved in the database, and get_option()
* is used right after, non-string scalar and null values are not converted to
* string equivalents and the original type is returned.
*
* Examples:
*
* When adding options like this: `add_option( 'my_option_name', 'value' )`
* and then retrieving them with `get_option( 'my_option_name' )`, the returned
* values will be:
 
 
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