WP_HTML_Open_Elements::has_element_in_list_item_scope( string $tag_name ): bool
- Since
- 6.4.0, 6.5.0, 6.7.0
- Source
wp-includes/html-api/class-wp-html-open-elements.php:353
Description
The stack of open elements is said to have a particular element in list item scope when it has that element in the specific scope consisting of the following element types:
- All the element types listed above for the has an element in scope algorithm.
- ol in the HTML namespace
- ul in the HTML namespace
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
$tag_namestring- Name of tag to check.
Return value
bool- Whether given element is in scope.
Performance profile
How much work a call to WP_HTML_Open_Elements::has_element_in_list_item_scope() 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
- Scaling
- Constant
- Instructions
- 7
- Plugin surface
- None
- Called by
- 0
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5. The body compiles to 7.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What one call costs · 1 distinct outcome
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_HTML_Open_Elements::has_element_in_list_item_scope() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 7 | ->has_element_in_specific_scope() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 7 instructions, 7 executed per call, 0 branches. The work does not change between versions.
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 · 1
- WP_HTML_Open_Elements::has_element_in_specific_scope()Returns whether an element is in a specific scope.
Source code
public function has_element_in_list_item_scope( string $tag_name ): bool { return $this->has_element_in_specific_scope( $tag_name, array( 'APPLET', 'BUTTON', 'CAPTION', 'HTML', 'TABLE', 'TD', 'TH', 'MARQUEE', 'OBJECT', 'OL', 'SELECT', 'TEMPLATE', 'UL', 'math MI', 'math MO', 'math MN', 'math MS', 'math MTEXT', 'math ANNOTATION-XML', 'svg FOREIGNOBJECT', 'svg DESC', 'svg TITLE', ) ); }Changelog
Introduced in 6.4.0. Unchanged from 6.7.7 through 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-open-elements.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
- Something wrong on this page? Report it and it gets fixed in the next regeneration.