Source View: blog_option_{$option}

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
641       * Filters a blog option value.
642       *
643       * The dynamic portion of the hook name, `$option`, refers to the blog option name.
644       *
645       * @since 3.5.0
646       *
647       * @param string  $value The option value.
648       * @param int     $id    Blog ID.
649       */
650      return apply_filters( "blog_option_{$option}", $value, $id );
651 }
652
653 /**
654  * Add a new option for a given blog id.
655  *
656  * You do not need to serialize values. If the value needs to be serialized, then
657  * it will be serialized before it is inserted into the database. Remember,
658  * resources can not be serialized or added as an option.
659  *