twentynineteen_scripts()
- Since
- Twenty Nineteen 1.0
- Source
wp-content/themes/twentynineteen/functions.php:265
Compatibility
- WordPress
- since Twenty Nineteen 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 twentynineteen_scripts() 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
- Heavy
- Scaling
- Constant
- Instructions
- 41–71
- Plugin surface
- None
- Called by
- 0
Reaches the database via get_post().
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 71.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- optionoption read or write
get_option()called directly - hookthird-party callbacks
apply_filters()one call below twentynineteen_scripts() - querycontent query
get_post()one call below twentynineteen_scripts() - cacheobject cache
wp_cache_get()one call below twentynineteen_scripts() - serializeserialisation
maybe_unserialize()one call below twentynineteen_scripts()
Further down the call graph this can also reach transient. That is the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 8 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost twentynineteen_scripts() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!has_nav_menu() && !is_singular() | 41 | get_stylesheet_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), wp_style_add_data(), has_nav_menu(), get_template_directory_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), is_singular() |
!has_nav_menu() && is_singular() && !comments_open() | 44 | get_stylesheet_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), wp_style_add_data(), has_nav_menu(), get_template_directory_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), is_singular(), comments_open() |
!has_nav_menu() && is_singular() && comments_open() && !get_option() | 48 | get_stylesheet_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), wp_style_add_data(), has_nav_menu(), get_template_directory_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), is_singular(), comments_open(), get_option() |
!has_nav_menu() && is_singular() && comments_open() && get_option() | 51 | get_stylesheet_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), wp_style_add_data(), has_nav_menu(), get_template_directory_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), is_singular(), comments_open(), get_option(), wp_enqueue_script() |
has_nav_menu() && !is_singular() | 61 | get_stylesheet_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), wp_style_add_data(), has_nav_menu(), get_theme_file_uri(), wp_enqueue_script(), get_theme_file_uri(), wp_enqueue_script(), get_template_directory_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), is_singular() |
has_nav_menu() && is_singular() && !comments_open() | 64 | get_stylesheet_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), wp_style_add_data(), has_nav_menu(), get_theme_file_uri(), wp_enqueue_script(), get_theme_file_uri(), wp_enqueue_script(), get_template_directory_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), is_singular(), comments_open() |
has_nav_menu() && is_singular() && comments_open() && !get_option() | 68 | get_stylesheet_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), wp_style_add_data(), has_nav_menu(), get_theme_file_uri(), wp_enqueue_script(), get_theme_file_uri(), wp_enqueue_script(), get_template_directory_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), is_singular(), comments_open(), get_option() |
has_nav_menu() && is_singular() && comments_open() && get_option() | 71 | get_stylesheet_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), wp_style_add_data(), has_nav_menu(), get_theme_file_uri(), wp_enqueue_script(), get_theme_file_uri(), wp_enqueue_script(), get_template_directory_uri(), wp_get_theme(), ->get(), wp_enqueue_style(), is_singular(), comments_open(), get_option(), wp_enqueue_script() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 71 instructions, 41–71 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 · 12
- wp_enqueue_style()Enqueues a CSS stylesheet.
- get_stylesheet_uri()Retrieves stylesheet URI for the active theme.
- wp_get_theme()Gets a WP_Theme object for a theme.
- wp_style_add_data()Adds metadata to a CSS stylesheet.
- has_nav_menu()Determines whether a registered nav menu location has a menu assigned to it.
- wp_enqueue_script()Enqueues a script.
- get_theme_file_uri()Retrieves the URL of a file in the theme.
- get_template_directory_uri()Retrieves template directory URI for the active theme.
- is_singular()Determines whether the query is for an existing single post of any post type (post, attachment, page, custom post types).
- comments_open()Determines whether the current post is open for comments.
- get_option()Retrieves an option value based on an option name.
- wp_get_theme()::get()
Source code
function twentynineteen_scripts() { wp_enqueue_style( 'twentynineteen-style', get_stylesheet_uri(), array(), wp_get_theme()->get( 'Version' ) ); wp_style_add_data( 'twentynineteen-style', 'rtl', 'replace' ); if ( has_nav_menu( 'menu-1' ) ) { wp_enqueue_script( 'twentynineteen-priority-menu', get_theme_file_uri( '/js/priority-menu.js' ), array(), '20200129', array( 'in_footer' => false, // Because involves header. 'strategy' => 'defer', ) ); wp_enqueue_script( 'twentynineteen-touch-navigation', get_theme_file_uri( '/js/touch-keyboard-navigation.js' ), array(), '20250802', array( 'in_footer' => true, 'strategy' => 'defer', ) ); } wp_enqueue_style( 'twentynineteen-print-style', get_template_directory_uri() . '/print.css', array(), wp_get_theme()->get( 'Version' ), 'print' ); if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) { wp_enqueue_script( 'comment-reply' ); }}Changelog
Introduced in Twenty Nineteen 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/twentynineteen/functions.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.