WP_Customize_Panel::maybe_render()
- Since
- 4.0.0
- Source
wp-includes/class-wp-customize-panel.php:275
Compatibility
- WordPress
- since 4.0.0
- 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.
Performance profile
How much work a call to WP_Customize_Panel::maybe_render() 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
- 4–16
- Plugin surface
- 2 hooks
- Called by
- 1
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, depending on the branch taken. The body compiles to 17.
Third-party callbacks on 'customize_render_panel', 'customize_render_panel_{$this->id}' run inside this call, and their cost is not bounded by anything here.
1 place in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
do_action()called directly
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Customize_Panel::maybe_render() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!->check_capabilities() | 4 | ->check_capabilities() |
->check_capabilities() | 16 | ->check_capabilities(), do_action(), do_action(), ->render() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 17 instructions, 4–16 executed per call, 1 branch. The work does not change between versions.
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Hooks and filters fired · 2
2 hooks fire while WP_Customize_Panel::maybe_render() runs, in this order:
- do_action( customize_render_panel )actionline 287 (+12 into the body)
Fires before rendering a Customizer panel.
- do_action( customize_render_panel_{$this->id} )actionline 297 (+22 into the body)
Fires before rendering a specific Customizer panel.
Uses · 3
- do_action()Calls the callback functions that have been added to an action hook.
- WP_Customize_Panel::check_capabilities()Checks required user capabilities and whether the theme has the feature support required by the panel.
- WP_Customize_Panel::render()Render the panel container, and then its contents (via `this->render_content()`) in a subclass.
Used by · 1
- WP_Customize_Panel::get_content()Get the panel's content template for insertion into the Customizer pane.
Source code
final public function maybe_render() { if ( ! $this->check_capabilities() ) { return; } /** * Fires before rendering a Customizer panel. * * @since 4.0.0 * * @param WP_Customize_Panel $panel WP_Customize_Panel instance. */ do_action( 'customize_render_panel', $this ); /** * Fires before rendering a specific Customizer panel. * * The dynamic portion of the hook name, `$this->id`, refers to * the ID of the specific Customizer panel to be rendered. * * @since 4.0.0 */ do_action( "customize_render_panel_{$this->id}" ); $this->render(); }Changelog
Introduced in 4.0.0. 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/class-wp-customize-panel.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.