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wp_xmlrpc_server::_prepare_taxonomy( WP_Taxonomy $taxonomy, array $fields ): array

Source
wp-includes/class-wp-xmlrpc-server.php:799
Prepares taxonomy data for return in an XML-RPC object.

Compatibility

WordPress
core
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

$taxonomyWP_Taxonomy
The unprepared taxonomy data.
$fieldsarray
The subset of taxonomy fields to return.

Return value

array
The prepared taxonomy data.

Performance profile

How much work a call to wp_xmlrpc_server::_prepare_taxonomy() 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
38–57

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 57.

Plugin surface
1 hook

Third-party callbacks on 'xmlrpc_prepare_taxonomy' run inside this call, and their cost is not bounded by anything here.

Called by
2

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

What it touches

  • hookthird-party callbacksapply_filters()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 wp_xmlrpc_server::_prepare_taxonomy() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
!$fields38–50apply_filters()
$fields45–57array_unique(), apply_filters()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev5738–574
8.55738–574
8.45738–57412 fewer instructions than PHP 8.3
8.36950–694
8.26950–694
8.16950–694
7.46950–694

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.

Hooks and filters fired · 1

One hook fires while wp_xmlrpc_server::_prepare_taxonomy() runs, in this order:

  1. apply_filters( xmlrpc_prepare_taxonomy )filterline 834 (+35 into the body)

    Filters XML-RPC-prepared data for the given taxonomy.

Uses · 1

  • apply_filters()Calls the callback functions that have been added to a filter hook.

Used by · 2

Source code

	protected function _prepare_taxonomy( $taxonomy, $fields ) {		$_taxonomy = array(			'name'         => $taxonomy->name,			'label'        => $taxonomy->label,			'hierarchical' => (bool) $taxonomy->hierarchical,			'public'       => (bool) $taxonomy->public,			'show_ui'      => (bool) $taxonomy->show_ui,			'_builtin'     => (bool) $taxonomy->_builtin,		); 		if ( in_array( 'labels', $fields, true ) ) {			$_taxonomy['labels'] = (array) $taxonomy->labels;		} 		if ( in_array( 'cap', $fields, true ) ) {			$_taxonomy['cap'] = (array) $taxonomy->cap;		} 		if ( in_array( 'menu', $fields, true ) ) {			$_taxonomy['show_in_menu'] = (bool) $taxonomy->show_in_menu;		} 		if ( in_array( 'object_type', $fields, true ) ) {			$_taxonomy['object_type'] = array_unique( (array) $taxonomy->object_type );		} 		/**		 * Filters XML-RPC-prepared data for the given taxonomy.		 *		 * @since 3.4.0		 *		 * @param array       $_taxonomy An array of taxonomy data.		 * @param WP_Taxonomy $taxonomy  Taxonomy object.		 * @param array       $fields    The subset of taxonomy fields to return.		 */		return apply_filters( 'xmlrpc_prepare_taxonomy', $_taxonomy, $taxonomy, $fields );	}

Changelog

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 6.7.7 tag, from src/wp-includes/class-wp-xmlrpc-server.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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