twentysixteen_scripts()

Compatibility

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 twentysixteen_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

Reaches the database via get_post().

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

106–129

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 130.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• optionoption read or writeget_option()called directly
• hookthird-party callbacksapply_filters()one call below twentysixteen_scripts()
• querycontent queryget_post()one call below twentysixteen_scripts()
• cacheobject cachewp_cache_get()one call below twentysixteen_scripts()
• serializeserialisationmaybe_unserialize()one call below twentysixteen_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 · 12 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost twentysixteen_scripts() can have, taken from its control-flow graph on PHP 8.5.

Uses · 13

• twentysixteen_fonts_url()Registers fonts for Twenty Sixteen.
• get_template_directory_uri()Retrieves template directory URI for the active theme.
• wp_enqueue_style()Enqueues a CSS stylesheet.
• get_stylesheet_uri()Retrieves stylesheet URI for the active theme.
• wp_register_style()Registers a CSS stylesheet.
• wp_register_script()Registers a new script.
• 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_enqueue_script()Enqueues a script.
• wp_attachment_is_image()Determines whether an attachment is an image.
• wp_localize_script()Localizes a script.

Source code

View on Trac ↗View on GitHub ↗

403function twentysixteen_scripts() {404	// Add custom fonts, used in the main stylesheet.405	$font_version = ( 0 === strpos( (string) twentysixteen_fonts_url(), get_template_directory_uri() . '/' ) ) ? '20230328' : null;406	wp_enqueue_style( 'twentysixteen-fonts', twentysixteen_fonts_url(), array(), $font_version );407 408	// Add Genericons, used in the main stylesheet.409	wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '20251101' );410 411	// Theme stylesheet.412	wp_enqueue_style( 'twentysixteen-style', get_stylesheet_uri(), array(), '20260819' );413 414	// Theme block stylesheet.415	wp_enqueue_style( 'twentysixteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentysixteen-style' ), '20260105' );416 417	// Register handles for removed stylesheets and scripts.418	wp_register_style( 'twentysixteen-ie', false, array( 'twentysixteen-style' ) );419	wp_register_style( 'twentysixteen-ie8', false, array( 'twentysixteen-style' ) );420	wp_register_style( 'twentysixteen-ie7', false, array( 'twentysixteen-style' ) );421	wp_register_script( 'twentysixteen-html5', false );422	wp_register_script( 'twentysixteen-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20230526', array( 'in_footer' => true ) );423 424	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {425		wp_enqueue_script( 'comment-reply' );426	}427 428	if ( is_singular() && wp_attachment_is_image() ) {429		wp_enqueue_script( 'twentysixteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20170530' );430	}431 432	wp_enqueue_script(433		'twentysixteen-script',434		get_template_directory_uri() . '/js/functions.js',435		array( 'jquery' ),436		'20230629',437		array(438			'in_footer' => false, // Because involves header.439			'strategy'  => 'defer',440		)441	);442 443	wp_localize_script(444		'twentysixteen-script',445		'screenReaderText',446		array(447			'expand'   => __( 'expand child menu', 'twentysixteen' ),448			'collapse' => __( 'collapse child menu', 'twentysixteen' ),449		)450	);451}

Changelog

Introduced in Twenty Sixteen 1.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 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/twentysixteen/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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