WP_Script_Modules::add_hooks()

Description

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 WP_Script_Modules::add_hooks() 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

Touches nothing outside its own arguments.

Scaling

Constant

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

Instructions

97–105

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 106.

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 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_Script_Modules::add_hooks() can have, taken from its control-flow graph on PHP 8.5.

Uses · 2

• wp_is_block_theme()Returns whether the active theme is a block-based theme or not.
• add_action()Adds a callback function to an action hook.

Source code

View on Trac ↗View on GitHub ↗

433	public function add_hooks() {434		$is_block_theme = wp_is_block_theme();435		$position       = $is_block_theme ? 'wp_head' : 'wp_footer';436		add_action( $position, array( $this, 'print_import_map' ) );437		if ( $is_block_theme ) {438			/*439			 * Modules can only be printed in the head for block themes because only with440			 * block themes will import map be fully populated by modules discovered by441			 * rendering the block template. In classic themes, modules are enqueued during442			 * template rendering, thus the import map must be printed in the footer,443			 * followed by all enqueued modules.444			 */445			add_action( 'wp_head', array( $this, 'print_head_enqueued_script_modules' ) );446		}447		add_action( 'wp_footer', array( $this, 'print_enqueued_script_modules' ) );448		add_action( $position, array( $this, 'print_script_module_preloads' ) );449 450		add_action( 'admin_print_footer_scripts', array( $this, 'print_import_map' ), 9 );451		add_action( 'admin_print_footer_scripts', array( $this, 'print_enqueued_script_modules' ) );452		add_action( 'admin_print_footer_scripts', array( $this, 'print_script_module_preloads' ) );453 454		/*455		 * Print translations after classic scripts like wp-i18n are loaded (at456		 * priority 10 via _wp_footer_scripts), but before the script modules457		 * execute. Script modules with type="module" are deferred by default,458		 * so inline translation scripts at priority 11 will execute before them.459		 */460		add_action( 'wp_footer', array( $this, 'print_script_module_translations' ), 21 );461		add_action( 'admin_print_footer_scripts', array( $this, 'print_script_module_translations' ), 11 );462 463		add_action( 'wp_footer', array( $this, 'print_script_module_data' ) );464		add_action( 'admin_print_footer_scripts', array( $this, 'print_script_module_data' ) );465		add_action( 'wp_footer', array( $this, 'print_a11y_script_module_html' ), 20 );466		add_action( 'admin_print_footer_scripts', array( $this, 'print_a11y_script_module_html' ), 20 );467	}

Changelog

Introduced in 6.5.0. 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-includes/class-wp-script-modules.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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