WP_Customize_Custom_CSS_Setting::validate() – Method

WP_Customize_Custom_CSS_Setting::validate( string $value ): true|WP_Error

Validate a received value for being valid CSS.

Description

Checks for imbalanced braces, brackets, and comments.
Notifications are rendered when the customizer state is saved.

Parameters

$valuestringrequired: CSS to validate.

Return

true|WP_Error True if the input was validated, otherwise WP_Error.

Source

public function validate( $value ) {	// Restores the more descriptive, specific name for use within this method.	$css = $value;	$validity = new WP_Error();	if ( preg_match( '#</?\w+#', $css ) ) {	$validity->add( 'illegal_markup', __( 'Markup is not allowed in CSS.' ) );	}	if ( ! $validity->has_errors() ) {	$validity = parent::validate( $css );	}	return $validity; }

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Uses	Description
WP_Customize_Setting::validate()`wp-includes/class-wp-customize-setting.php`	Validates an input.
WP_Error::__construct()`wp-includes/class-wp-error.php`	Initializes the error.

Changelog

Version	Description
5.9.0	Renamed `$css` to `$value` for PHP 8 named parameter support.
4.9.0	Checking for balanced characters has been moved client-side via linting in code editor.
4.7.0	Introduced.

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