wp_default_packages_inline_scripts( WP_Scripts $scripts )

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$scriptsWP_Scripts

WP_Scripts object.

Performance profile

How much work a call to wp_default_packages_inline_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_user_by().

Scaling

Constant

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

Instructions

243–262

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 264.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

• optionoption read or writeget_option()called directly
• hookthird-party callbacksapply_filters()one call below wp_default_packages_inline_scripts()
• cacheobject cachewp_cache_get()one call below wp_default_packages_inline_scripts()
• serializeserialisationmaybe_unserialize()one call below wp_default_packages_inline_scripts()
• querycontent queryget_user_by()one call below wp_default_packages_inline_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 · 4 distinct outcomes

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

Uses · 13

• sanitize_url()Sanitizes a URL for database or redirect usage.
• get_rest_url()Retrieves the URL to a REST endpoint on a site.
• wp_installing()Checks or sets whether WordPress is in "installation" mode.
• wp_create_nonce()Creates a cryptographic token tied to a specific action, user, user session, and window of time.
• admin_url()Retrieves the URL to the admin area for the current site.
• get_current_user_id()Gets the current user's ID.
• get_user_meta()Retrieves user meta field for a user.
• wp_json_encode()Encodes a variable into JSON, with some confidence checks.
• get_option()Retrieves an option value based on an option name.
• get_user_locale()Retrieves the locale of a user.
• __()Retrieves the translation of $text.
• DateTime::__construct()

Used by · 1

• wp_default_packages()Registers all the WordPress packages scripts.

Source code

View on Trac ↗View on GitHub ↗

341function wp_default_packages_inline_scripts( $scripts ) {342	global $wp_locale, $wpdb;343 344	if ( isset( $scripts->registered['wp-api-fetch'] ) ) {345		$scripts->registered['wp-api-fetch']->deps[] = 'wp-hooks';346	}347	$scripts->add_inline_script(348		'wp-api-fetch',349		sprintf(350			'wp.apiFetch.use( wp.apiFetch.createRootURLMiddleware( "%s" ) );',351			sanitize_url( get_rest_url() )352		),353		'after'354	);355	$scripts->add_inline_script(356		'wp-api-fetch',357		implode(358			"\n",359			array(360				sprintf(361					'wp.apiFetch.nonceMiddleware = wp.apiFetch.createNonceMiddleware( "%s" );',362					wp_installing() ? '' : wp_create_nonce( 'wp_rest' )363				),364				'wp.apiFetch.use( wp.apiFetch.nonceMiddleware );',365				'wp.apiFetch.use( wp.apiFetch.mediaUploadMiddleware );',366				sprintf(367					'wp.apiFetch.nonceEndpoint = "%s";',368					admin_url( 'admin-ajax.php?action=rest-nonce' )369				),370			)371		),372		'after'373	);374 375	$meta_key     = $wpdb->get_blog_prefix() . 'persisted_preferences';376	$user_id      = get_current_user_id();377	$preload_data = get_user_meta( $user_id, $meta_key, true );378	$scripts->add_inline_script(379		'wp-preferences',380		sprintf(381			'( function() {382				var serverData = %s;383				var userId = "%d";384				var persistenceLayer = wp.preferencesPersistence.__unstableCreatePersistenceLayer( serverData, userId );385				var preferencesStore = wp.preferences.store;386				wp.data.dispatch( preferencesStore ).setPersistenceLayer( persistenceLayer );387			} ) ();',388			wp_json_encode( $preload_data, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ),389			$user_id390		)391	);392 393	// Backwards compatibility - configure the old wp-data persistence system.394	$scripts->add_inline_script(395		'wp-data',396		implode(397			"\n",398			array(399				'( function() {',400				'	var userId = ' . get_current_user_id() . ';',401				'	var storageKey = "WP_DATA_USER_" + userId;',402				'	wp.data',403				'		.use( wp.data.plugins.persistence, { storageKey: storageKey } );',404				'} )();',405			)406		)407	);408 409	// Calculate the timezone abbr (EDT, PST) if possible.410	$timezone_string = get_option( 'timezone_string', 'UTC' );411	$timezone_abbr   = '';412 413	if ( ! empty( $timezone_string ) ) {414		$timezone_date = new DateTime( 'now', new DateTimeZone( $timezone_string ) );415		$timezone_abbr = $timezone_date->format( 'T' );416	}417 418	$gmt_offset = get_option( 'gmt_offset', 0 );419 420	$scripts->add_inline_script(

Changelog

Introduced in 5.0.0. 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 6.9.7 tag, from src/wp-includes/script-loader.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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