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Source View: pre_option_{$option}

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

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
324  *      the option value.
325  *
326  * @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
327  * @return mixed Value set for the option.
328  */
329 function get_option( $option, $default = false ) {
330      global $wpdb;
331
332      // Allow plugins to short-circuit options.
333      $pre = apply_filters( 'pre_option_' . $option, false );
334      if ( false !== $pre )
335           return $pre;
336
337      $option = trim($option);
338      if ( empty($option) )
339           return false;
340
341      if ( defined( 'WP_SETUP_CONFIG' ) )
342           return false;