Whoops WordPress error handler

Whoops PHP error handler for WordPress with different themes.
It catches fatal errors and exceptions and shows in beautiful format. We can see a stack trace, go through the stack trace to see the called parts in the code.
In the debug information we can find GET, POST, Files, Cookie, Session, Server/Request Data, Environment Variables.

How to install WordPress error handler

1. Require via Composer

   composer require renakdup/whoops-wordpress-error-handler

   Or if you want to use it just for local environment

   composer require renakdup/whoops-wordpress-error-handler --dev

2. Create a file of mu-plugin by the address wp-content/mu-plugins/mu-plugins/whoops-error-handler.php:

   mkdir wp-content/mu-plugins
   touch wp-content/mu-plugins/whoops-error-handler.php

3. Add the calling code to the file

   <?php
   // This checks necessary if you use the package as a dev dependency
   if ( ! class_exists( Renakdup\WhoopsErrorHandler\ErrorHandler::class ) ) {
        return;
   }
   
   $error_handler = new Renakdup\WhoopsErrorHandler\ErrorHandler();
   $error_handler->init();

That's it!

How to configure

Showing conditionals

By the default error handler isn't displayed for wp_get_environment_type() === 'production'.
If you want to exclude additional envs, you should use the filter:

add_filter( 'renakdup/whoops-error-handler/prohibited-envs', function ( $defaults ) {
	return array_merge( $defaults, [ 'staging', 'development' ] );
}, 10, 1);

---

If you want to disable error handler for some special conditionals then use this filer:

add_filter( 'renakdup/whoops-error-handler/not-enable', function ( $default ) {
	if ( ! WP_DEBUG || ! WP_DEBUG_DISPLAY ) {
		return true;
	}
}, 10, 1);

Themes

To use one of the available themes, you can pass theme's name while instantiating object.

 $error_handler = Renakdup\WhoopsErrorHandler\WhoopsErrorHandler( 'gray' );

Available themes

Smooth material dark

$name = 'material-dark-smooth';

---

Material dark

$name = 'material-dark';

---

Gray

$name = 'gray';

---

Original optimized

$name = 'original-optimized';

---

Original Default

$name = 'default-original';