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WordPress

remove_block_asset_path_prefix( string $asset_handle_or_path ): string

Since
5.5.0
Source
wp-includes/blocks.php:18
Removes the block asset's path prefix if provided.

Compatibility

WordPress
since 5.5.0
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.

Parameters

$asset_handle_or_pathstring
Asset handle or prefixed path.

Return value

string
Path without the prefix or the original value.

Performance profile

How much work a call to remove_block_asset_path_prefix() 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
4–9

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 10.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
4

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

WhenInstructionsCalls it makes
always4–9none

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev104–92
8.5104–92
8.4104–9213 fewer instructions than PHP 8.3
8.3237–222
8.2237–222
8.1237–2222 fewer instructions than PHP 7.4
7.4258–242

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 · 1

Used by · 4

  • register_block_script_handle()Finds a script handle for the selected block metadata field. It detects when a path to file was provided and optionally finds a corresponding asset file with details necessary to register the script under automatically generated handle name. It returns unprocessed script handle otherwise.
  • register_block_script_module_id()Finds a script module ID for the selected block metadata field. It detects when a path to file was provided and optionally finds a corresponding asset file with details necessary to register the script module under with an automatically generated module ID. It returns unprocessed script module ID otherwise.
  • register_block_style_handle()Finds a style handle for the block metadata field. It detects when a path to file was provided and registers the style under automatically generated handle name. It returns unprocessed style handle otherwise.
  • register_block_type_from_metadata()Registers a block type from the metadata stored in the `block.json` file.

Source code

function remove_block_asset_path_prefix( $asset_handle_or_path ) {	$path_prefix = 'file:';	if ( ! str_starts_with( $asset_handle_or_path, $path_prefix ) ) {		return $asset_handle_or_path;	}	$path = substr(		$asset_handle_or_path,		strlen( $path_prefix )	);	if ( str_starts_with( $path, './' ) ) {		$path = substr( $path, 2 );	}	return $path;}

Changelog

Introduced in 5.5.0. 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 7.0.4 tag, from src/wp-includes/blocks.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
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