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
366           $id = get_current_blog_id();
367
368      if ( get_current_blog_id() == $id )
369           return get_option( $option, $default );
370
371      switch_to_blog( $id );
372      $value = get_option( $option, $default );
373      restore_current_blog();
374
375      return apply_filters( 'blog_option_' . $option, $value, $id );
376 }
377
378 /**
379  * Add a new option for a given blog id.
380  *
381  * You do not need to serialize values. If the value needs to be serialized, then
382  * it will be serialized before it is inserted into the database. Remember,
383  * resources can not be serialized or added as an option.
384  *