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WP_HTML_Processor::insert_foreign_element( WP_HTML_Token $token, bool $only_add_to_element_stack )

Since
6.7.0
Source
wp-includes/html-api/class-wp-html-processor.php:6256
Inserts a foreign element on to the stack of open elements.

Compatibility

WordPress
since 6.7.0
PHP
7.4–8.6-dev
  • 6.7.7
  • 6.8.8
  • 6.9.7
  • 7.0.4
  • 7.1.0

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$tokenWP_HTML_Token
Insert this token. The token's namespace and insertion point will be updated correctly.
$only_add_to_element_stackbool
Whether to skip the "insert an element at the adjusted insertion location" algorithm when adding this element.

Performance profile

How much work a call to WP_HTML_Processor::insert_foreign_element() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class
Trivial

Touches nothing outside its own arguments.

Scaling
Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions
19–22

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 26.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
1

1 place in core call this, so the cost is paid more often than your own code shows.

What one call costs · 2 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_HTML_Processor::insert_foreign_element() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
->is_mathml_integration_point()19–20->get_adjusted_current_node(), ->is_mathml_integration_point(), ->insert_html_element()
!->is_mathml_integration_point()19–22->get_adjusted_current_node(), ->is_mathml_integration_point(), ->is_html_integration_point(), ->insert_html_element()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev2619–223
8.52619–223
8.42619–223
8.32619–223
8.22619–223
8.12619–2231 fewer instruction than PHP 7.4
7.42719–233

An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.

Uses · 4

Used by · 1

Source code

	private function insert_foreign_element( WP_HTML_Token $token, bool $only_add_to_element_stack ): void {		$adjusted_current_node = $this->get_adjusted_current_node(); 		$token->namespace = $adjusted_current_node ? $adjusted_current_node->namespace : 'html'; 		if ( $this->is_mathml_integration_point() ) {			$token->integration_node_type = 'math';		} elseif ( $this->is_html_integration_point() ) {			$token->integration_node_type = 'html';		} 		if ( false === $only_add_to_element_stack ) {			/*			 * @todo Implement the "appropriate place for inserting a node" and the			 *       "insert an element at the adjusted insertion location" algorithms.			 *			 * These algorithms mostly impacts DOM tree construction and not the HTML API.			 * Here, there's no DOM node onto which the element will be appended, so the			 * parser will skip this step.			 *			 * @see https://html.spec.whatwg.org/#insert-an-element-at-the-adjusted-insertion-location			 */		} 		$this->insert_html_element( $token );	}

Changelog

Introduced in 6.7.0. Unchanged from 6.7.7 through 7.1.0.

  1. 6.7.7
  2. 6.8.8
  3. 6.9.7
  4. 7.0.4
  5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data
Generated from the wordpress-develop 7.1.0 tag, from src/wp-includes/html-api/class-wp-html-processor.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
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