WP_Customize_Manager::is_theme_active(): bool
- Since
- 3.4.0
- Source
wp-includes/class-wp-customize-manager.php:908
Compatibility
- WordPress
- since 3.4.0
- 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.
Return value
bool
Performance profile
How much work a call to WP_Customize_Manager::is_theme_active() 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
- 5
- Plugin surface
- None
- Called by
- 10
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 5.
Nothing here hands control to plugin code.
10 places in core call this, so the cost is paid more often than your own code shows.
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_Customize_Manager::is_theme_active() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 5 | ->get_stylesheet() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 5 instructions, 5 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_Customize_Manager::get_stylesheet()Retrieves the stylesheet name of the previewed theme.
Used by · 10
- WP_Customize_Manager::add_state_query_params()Adds customize state query params to a given URL if preview is allowed.
- WP_Customize_Manager::customize_pane_settings()Prints JavaScript settings for parent window.
- WP_Customize_Manager::customize_preview_settings()Prints JavaScript settings for preview frame.
- WP_Customize_Manager::establish_loaded_changeset()Establishes the loaded changeset.
- WP_Customize_Manager::get_document_title_template()Gets the template string for the Customizer pane document title.
- WP_Customize_Manager::save_changeset_post()Saves the post for the loaded changeset.
- WP_Customize_Manager::setup_theme()Starts preview and customize theme.
- WP_Customize_Manager::start_previewing_theme()If the theme to be previewed isn't the active theme, add filter callbacks to swap it out at runtime.
- WP_Customize_Manager::stop_previewing_theme()Stops previewing the selected theme.
- WP_Customize_Manager::unsanitized_post_values()Gets dirty pre-sanitized setting values in the current customized state.
Source code
public function is_theme_active() { return $this->get_stylesheet() === $this->original_stylesheet; }Changelog
Introduced in 3.4.0. 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 7.0.4 tag, from
src/wp-includes/class-wp-customize-manager.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.