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WordPress

_get_block_templates_paths( string $base_directory ): string[]

Since
5.9.0
Source
wp-includes/block-template-utils.php:297
Finds all nested template part file paths in a theme's directory.

Compatibility

WordPress
since 5.9.0
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

$base_directorystring
The theme's file path.

Return value

string[]
A list of paths to all template part files.

Performance profile

How much work a call to _get_block_templates_paths() 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

Reads or writes the filesystem via is_dir().

Scaling
Scales with input

The body loops, so the work grows with what you pass in.

Instructions
6–28

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 34.

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

  • filesystemfilesystem accessis_dir()called directly

What one call costs · 2 distinct outcomes

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

WhenInstructionsCalls it makes
isset($template_path_list[$base_directory])6none
!isset($template_path_list[$base_directory])12–28is_dir()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 34 instructions, 6–28 executed per call, 4 branches. The work does not change between versions.

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 · 3

  • RecursiveIteratorIterator::__construct()
  • RecursiveDirectoryIterator::__construct()
  • RegexIterator::__construct()

Used by · 1

Source code

function _get_block_templates_paths( $base_directory ) {	static $template_path_list = array();	if ( isset( $template_path_list[ $base_directory ] ) ) {		return $template_path_list[ $base_directory ];	}	$path_list = array();	if ( is_dir( $base_directory ) ) {		$nested_files      = new RecursiveIteratorIterator( new RecursiveDirectoryIterator( $base_directory ) );		$nested_html_files = new RegexIterator( $nested_files, '/^.+\.html$/i', RecursiveRegexIterator::GET_MATCH );		foreach ( $nested_html_files as $path => $file ) {			$path_list[] = $path;		}	}	$template_path_list[ $base_directory ] = $path_list;	return $path_list;}

Changelog

Introduced in 5.9.0. 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/block-template-utils.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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