WP_HTML_Active_Formatting_Elements::walk_up()

Steps through the stack of active formatting elements, starting with the bottom element (added last) and walking upwards to the one added first.

Description

This generator function is designed to be used inside a "foreach" loop.

Example:

$html = '<em><strong><a>We are here';
foreach ( $stack->walk_up() as $node ) {
    echo "{$node->node_name} -> ";
}
> A -> STRONG -> EM ->

To start with the first added element and walk towards the bottom, see WP_HTML_Active_Formatting_Elements::walk_down().

public function walk_up() {
	for ( $i = count( $this->stack ) - 1; $i >= 0; $i-- ) {
		yield $this->stack[ $i ];
	}
}

Used by	Description
WP_HTML_Active_Formatting_Elements::remove_node()`wp-includes/html-api/class-wp-html-active-formatting-elements.php`	Removes a node from the stack of active formatting elements.
WP_HTML_Active_Formatting_Elements::contains_node()`wp-includes/html-api/class-wp-html-active-formatting-elements.php`	Reports if a specific node is in the stack of active formatting elements.

Version	Description
6.4.0	Introduced.

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