detect_error();
if ( ! $error ) {
return;
}
if ( ! isset( $GLOBALS['wp_locale'] ) && function_exists( 'load_default_textdomain' ) ) {
load_default_textdomain();
}
$handled = false;
if ( ! is_multisite() && wp_recovery_mode()->is_initialized() ) {
$handled = wp_recovery_mode()->handle_error( $error );
}
// Display the PHP error template if headers not sent.
if ( is_admin() || ! headers_sent() ) {
$this->display_error_template( $error, $handled );
}
} catch ( Exception $e ) {
// Catch exceptions and remain silent.
}
}
protected function detect_error() {
$error = error_get_last();
// No error, just skip the error handling code.
if ( null === $error ) {
return null;
}
// Bail if this error should not be handled.
if ( ! $this->should_handle_error( $error ) ) {
return null;
}
return $error;
}
protected function should_handle_error( $error ) {
$error_types_to_handle = array(
E_ERROR,
E_PARSE,
E_USER_ERROR,
E_COMPILE_ERROR,
E_RECOVERABLE_ERROR,
);
if ( isset( $error['type'] ) && in_array( $error['type'], $error_types_to_handle, true ) ) {
return true;
}
return (bool) apply_filters( 'wp_should_handle_php_error', false, $error );
}
protected function display_error_template( $error, $handled ) {
if ( defined( 'WP_CONTENT_DIR' ) ) {
// Load custom PHP error template, if present.
$php_error_pluggable = WP_CONTENT_DIR . '/php-error.php';
if ( is_readable( $php_error_pluggable ) ) {
require_once $php_error_pluggable;
return;
}
}
// Otherwise, display the default error template.
$this->display_default_error_template( $error, $handled );
}
protected function display_default_error_template( $error, $handled ) {
if ( ! function_exists( '__' ) ) {
wp_load_translations_early();
}
if ( ! function_exists( 'wp_die' ) ) {
require_once ABSPATH . WPINC . '/functions.php';
}
if ( ! class_exists( 'WP_Error' ) ) {
require_once ABSPATH . WPINC . '/class-wp-error.php';
}
if ( true === $handled && wp_is_recovery_mode() ) {
$message = __( 'There has been a critical error on this website, putting it in recovery mode. Please check the Themes and Plugins screens for more details. If you just installed or updated a theme or plugin, check the relevant page for that first.' );
} elseif ( is_protected_endpoint() && wp_recovery_mode()->is_initialized() ) {
if ( is_multisite() ) {
$message = __( 'There has been a critical error on this website. Please reach out to your site administrator, and inform them of this error for further assistance.' );
} else {
$message = sprintf(
/* translators: %s: Support forums URL. */
__( 'There has been a critical error on this website. Please check your site admin email inbox for instructions. If you continue to have problems, please try the support forums.' ),
__( 'https://wordpress.org/support/forums/' )
);
}
} else {
$message = __( 'There has been a critical error on this website.' );
}
$message = sprintf(
'%s
%s
',
$message,
/* translators: Documentation about troubleshooting. */
__( 'https://wordpress.org/documentation/article/faq-troubleshooting/' ),
__( 'Learn more about troubleshooting WordPress.' )
);
$args = array(
'response' => 500,
'exit' => false,
);
$message = apply_filters( 'wp_php_error_message', $message, $error );
$args = apply_filters( 'wp_php_error_args', $args, $error );
$wp_error = new WP_Error(
'internal_server_error',
$message,
array(
'error' => $error,
)
);
wp_die( $wp_error, '', $args );
}
}