Featured_Content::init()
- Since
- Twenty Fourteen 1.0
- Source
wp-content/themes/twentyfourteen/inc/featured-content.php:52
Description
Theme must declare that they support this module by adding add_theme_support( 'featured-content' ); during after_setup_theme.
If no theme support is found there is no need to hook into WordPress.
We'll just return early instead.
Compatibility
- WordPress
- since Twenty Fourteen 1.0
- 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 Featured_Content::init() 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
- 6–61
- 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, depending on the branch taken. The body compiles to 64.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What one call costs · 3 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost Featured_Content::init() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 6–11 | get_theme_support() |
isset($theme_support) | 53 | get_theme_support(), add_filter(), add_action(), add_action(), add_action(), add_action(), add_action(), add_action(), add_action(), add_action() |
isset($theme_support) && isset($value) | 61 | get_theme_support(), absint(), add_filter(), add_action(), add_action(), add_action(), add_action(), add_action(), add_action(), add_action(), add_action() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 64 instructions, 6–61 executed per call, 4 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 · 4
- get_theme_support()Gets the theme support arguments passed when registering that support.
- absint()Converts a value to non-negative integer.
- add_filter()Adds a callback function to a filter hook.
- add_action()Adds a callback function to an action hook.
Source code
public static function init() { $theme_support = get_theme_support( 'featured-content' ); // Return early if theme does not support Featured Content. if ( ! $theme_support ) { return; } /* * An array of named arguments must be passed as the second parameter * of add_theme_support(). */ if ( ! isset( $theme_support[0] ) ) { return; } // Return early if "featured_content_filter" has not been defined. if ( ! isset( $theme_support[0]['featured_content_filter'] ) ) { return; } $filter = $theme_support[0]['featured_content_filter']; // Theme can override the number of max posts. if ( isset( $theme_support[0]['max_posts'] ) ) { self::$max_posts = absint( $theme_support[0]['max_posts'] ); } add_filter( $filter, array( __CLASS__, 'get_featured_posts' ) ); add_action( 'customize_register', array( __CLASS__, 'customize_register' ), 9 ); add_action( 'admin_init', array( __CLASS__, 'register_setting' ) ); add_action( 'switch_theme', array( __CLASS__, 'delete_transient' ) ); add_action( 'save_post', array( __CLASS__, 'delete_transient' ) ); add_action( 'delete_post_tag', array( __CLASS__, 'delete_post_tag' ) ); add_action( 'customize_controls_enqueue_scripts', array( __CLASS__, 'enqueue_scripts' ) ); add_action( 'pre_get_posts', array( __CLASS__, 'pre_get_posts' ) ); add_action( 'wp_loaded', array( __CLASS__, 'wp_loaded' ) ); }Changelog
Introduced in Twenty Fourteen 1.0. 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-content/themes/twentyfourteen/inc/featured-content.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.