$page->getUnknown() method

Hookable method called when a request to a field was made that didn't match anything

Hooks that want to inject something here should hook after and modify the $event->return.

Usage

$mixed = $page->getUnknown(string $key);

Arguments

NameType(s)Description
keystring

Name of property.

Return value

null mixed

Returns null if property not known, or a value if it is.


Hooking $page->getUnknown(…)

You can add your own hook events that are executed either before or after the $page->getUnknown(…) method is executed. Examples of both are included below. A good place for hook code such as this is in your /site/ready.php file.

Hooking before

The 'before' hooks are called immediately before each $page->getUnknown(…) method call is executed. This type of hook is especially useful for modifying arguments before they are sent to the method.

$this->addHookBefore('Page::getUnknown', function(HookEvent $event) {
  // Get the object the event occurred on, if needed
  $page = $event->object;

  // Get values of arguments sent to hook (and optionally modify them)
  $key = $event->arguments(0);

  /* Your code here, perhaps modifying arguments */

  // Populate back arguments (if you have modified them)
  $event->arguments(0, $key);
});

Hooking after

The 'after' hooks are called immediately after each $page->getUnknown(…) method call is executed. This type of hook is especially useful for modifying the value that was returned by the method call.

$this->addHookAfter('Page::getUnknown', function(HookEvent $event) {
  // Get the object the event occurred on, if needed
  $page = $event->object;

  // An 'after' hook can retrieve and/or modify the return value
  $return = $event->return;

  // Get values of arguments sent to hook (if needed)
  $key = $event->arguments(0);

  /* Your code here, perhaps modifying the return value */

  // Populate back return value, if you have modified it
  $event->return = $return;
});

$page methods and properties

API reference based on ProcessWire core version 3.0.185

Twitter updates

  • ProcessWire 3.0.187: This week we have some very useful new additions to both the core Repeater Fieldtype and the ProFields Repeater Matrix Fieldtype. This post covers all the details along with a couple of brief demonstration videos— More
    22 October 2021
  • ProcessWire 3.0.185 (dev) core updates, plus new Session Allow module— More
    17 September 2021
  • Three new ProcessWire Textformatter modules: Find/Replace, Markdown in Markup, and Emoji— More
    3 September 2021

Latest news

  • ProcessWire Weekly #388
    In the 388th issue of ProcessWire Weekly we'll check out the latest core update, introduce two new third party modules, and more. Read on!
    Weekly.pw / 16 October 2021
  • ProcessWire 3.0.184 new master/main version
    This week we have a new master/main version released after a full year in the making. As you might imagine, this new version has a ton of great new stuff and we’ll try to cover much of it here.
    Blog / 27 August 2021
  • Subscribe to weekly ProcessWire news

“To Drupal, or to ProcessWire? The million dollar choice. We decided to make an early switch to PW. And in retrospect, ProcessWire was probably the best decision we made. Thanks are due to ProcessWire and the amazing system and set of modules that are in place.” —Unni Krishnan, Founder of PigtailPundits