WP_Script_Modules::get_import_map(): array

Compatibility

Present in every tracked release (6.7.10 to 7.1.3), and compiles on PHP 7.4 through 8.6-dev.

Return value

array

Array with an imports key mapping to an array of script module identifiers and their respective URLs, including the version query.

Performance profile

How much work a call to WP_Script_Modules::get_import_map() 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

Scales with input

The body loops, so the work grows with how much data it finds.

Instructions

13–14

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 21.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

2

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

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

Uses · 3

• WP_Script_Modules::get_dependencies()Retrieves all the dependencies for the given script module identifiers, filtered by import types.
• WP_Script_Modules::get_marked_for_enqueue()Retrieves the list of script modules marked for enqueue.
• WP_Script_Modules::get_src()Gets the versioned URL for a script module src.

Used by · 2

• WP_Script_Modules::print_import_map()Prints the import map using a script tag with a type="importmap" attribute.
• WP_Script_Modules::print_script_module_data()Print data associated with Script Modules.

Source code

View on Trac ↗View on GitHub ↗

268	private function get_import_map(): array {269		$imports = array();270		foreach ( $this->get_dependencies( array_keys( $this->get_marked_for_enqueue() ) ) as $id => $script_module ) {271			$imports[ $id ] = $this->get_src( $id );272		}273		return array( 'imports' => $imports );274	}

Changelog

Introduced in 6.5.0. One change between 6.7.10 and 7.1.3.

1. 6.7.10
2. 6.8.11
3. 6.9.10
4. 7.0.7
5. 7.1.3

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.7.10 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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