Title: WP_Customize_Selective_Refresh::handle_error
Published: April 12, 2016
Last modified: April 28, 2025

---

# WP_Customize_Selective_Refresh::handle_error( int $errno, string $errstr, string $errfile = null, int $errline = null ): true

## In this article

 * [Description](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#description)
 * [Parameters](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#source)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#wp--skip-link--target)

Handles PHP errors triggered during rendering the partials.

## 󠀁[Description](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#description)󠁿

These errors will be relayed back to the client in the Ajax response.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#parameters)󠁿

 `$errno`intrequired

Error number.

`$errstr`stringrequired

Error string.

`$errfile`stringoptional

Error file.

Default:`null`

`$errline`intoptional

Error line.

Default:`null`

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#return)󠁿

 true Always true.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#source)󠁿

    ```php
    public function handle_error( $errno, $errstr, $errfile = null, $errline = null ) {
    	$this->triggered_errors[] = array(
    		'partial'      => $this->current_partial_id,
    		'error_number' => $errno,
    		'error_string' => $errstr,
    		'error_file'   => $errfile,
    		'error_line'   => $errline,
    	);
    	return true;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/customize/class-wp-customize-selective-refresh.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/customize/class-wp-customize-selective-refresh.php#L288)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/customize/class-wp-customize-selective-refresh.php#L288-L297)

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_customize_selective_refresh/handle_error/?output_format=md#changelog)󠁿

| Version | Description | 
| [4.5.0](https://developer.wordpress.org/reference/since/4.5.0/) | Introduced. |

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