Walker_Nav_Menu::build_atts() – Method

Walker_Nav_Menu::build_atts( array $atts = array() ): string

Builds a string of HTML attributes from an array of key/value pairs.

Description

Empty values are ignored.

Parameters

$attsarrayoptional: An array of HTML attribute key/value pairs.
Default:array()

Return

string A string of HTML attributes.

Source

protected function build_atts( $atts = array() ) {
	$attribute_string = '';
	foreach ( $atts as $attr => $value ) {
		if ( false !== $value && '' !== $value && is_scalar( $value ) ) {
			$value             = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
			$attribute_string .= ' ' . $attr . '="' . $value . '"';
		}
	}
	return $attribute_string;
}

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Uses	Description
esc_url()`wp-includes/formatting.php`	Checks and cleans a URL.
esc_attr()`wp-includes/formatting.php`	Escaping for HTML attributes.

Used by	Description
Walker_Nav_Menu::start_el()`wp-includes/class-walker-nav-menu.php`	Starts the element output.
Walker_Nav_Menu::start_lvl()`wp-includes/class-walker-nav-menu.php`	Starts the list before the elements are added.

Changelog

Version	Description
6.3.0	Introduced.

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