Wire::isChanged() method

Does the object have changes, or has the given property changed?

Applicable only when object has change tracking enabled.

Example

// Check if page has changed
if($page->isChanged()) {
  // Page has changes
}

// Check if the page title field has changed
if($page->isChanged('title')) {
  // The title has changed
}

Usage

// basic usage
$bool = $wire->isChanged();

// usage with all arguments
$bool = $wire->isChanged(string $what = '');

Arguments

NameType(s)Description
what (optional)string

Name of property, or if left blank, checks if any properties have changed.

Return value

bool

True if property has changed, false if not.


Wire methods and properties

API reference based on ProcessWire core version 3.0.137

Twitter updates

  • We added WebP image support this year and many have been adopting it in existing projects. We look at a process used for migrating existing websites to WebP images— from preliminary considerations to implementation & testing, w/lots of tips & tricks too: More
    16 August 2019
  • Core version 3.0.137 on the dev branch adds the ability to hook multiple methods at once, in a single call. This post details how it works and provides a useful example of how you might put it to use in your development environment— More
    2 August 2019
  • ProcessWire 3.0.136 updates our CKEditor version and adds a new backtrace() method to the core Debug class— More
    26 July 2019

Latest news

  • ProcessWire Weekly #275
    In the 275th issue of ProcessWire Weekly we're going to walk you through the new features included in ProcessWire 3.0.138, cover some WebP related stuff, and highlight recent forum posts and online resources. Read on!
    Weekly.pw / 17 August 2019
  • WebP images on an existing site
    In this post we’ll look at a process used for migrating an existing website to use WebP images. We’ll cover everything from preliminary considerations to implementation and testing, with lots of tips and tricks along the way.
    Blog / 16 August 2019
  • Subscribe to weekly ProcessWire news

I just love the easy and intuitive ProcessWire API. ProcessWire rocks!” —Jens Martsch, Web developer