wppaste
WordPress

get_terms_to_edit( int $post_id, string $taxonomy = 'post_tag' ): string|false|WP_Error

Since
2.8.0
Source
wp-admin/includes/taxonomy.php:260
Gets comma-separated list of terms available to edit for the given post ID.

Compatibility

WordPress
since 2.8.0
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

$post_idint
$taxonomystringoptional
The taxonomy for which to retrieve terms. Default 'post_tag'.Default: 'post_tag'

Return value

string|false|WP_Error

Performance profile

How much work a call to get_terms_to_edit() 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 wp_get_object_terms().

Scaling
Scales with input

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

Instructions
6–48

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 55.

Plugin surface
1 hook

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

Called by
3

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

What it touches

  • querycontent querywp_get_object_terms()called directly
  • cacheobject cachewp_cache_add()called directly
  • hookthird-party callbacksapply_filters()called directly

Further down the call graph this can also reach option, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 7 distinct outcomes

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

WhenInstructionsCalls it makes
always6none
$terms !== false14get_object_term_cache()
$terms !== false && is_wp_error()18get_object_term_cache(), is_wp_error()
$terms === false29get_object_term_cache(), wp_get_object_terms(), wp_list_pluck(), wp_cache_add()
$terms !== false && !is_wp_error()32–33get_object_term_cache(), is_wp_error(), esc_attr(), apply_filters()
$terms === false && is_wp_error()33get_object_term_cache(), wp_get_object_terms(), wp_list_pluck(), wp_cache_add(), is_wp_error()
$terms === false && !is_wp_error()47–48get_object_term_cache(), wp_get_object_terms(), wp_list_pluck(), wp_cache_add(), is_wp_error(), esc_attr(), apply_filters()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev556–486
8.5556–486
8.4556–4863 fewer instructions than PHP 8.3
8.3586–516
8.2586–516
8.1586–516
7.4586–516

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 get_terms_to_edit() runs, in this order:

  1. apply_filters( terms_to_edit )filterline 295 (+35 into the body)

    Filters the comma-separated list of terms available to edit.

Uses · 7

Used by · 3

Source code

function get_terms_to_edit( $post_id, $taxonomy = 'post_tag' ) {	$post_id = (int) $post_id;	if ( ! $post_id ) {		return false;	} 	$terms = get_object_term_cache( $post_id, $taxonomy );	if ( false === $terms ) {		$terms = wp_get_object_terms( $post_id, $taxonomy );		wp_cache_add( $post_id, wp_list_pluck( $terms, 'term_id' ), $taxonomy . '_relationships' );	} 	if ( ! $terms ) {		return false;	}	if ( is_wp_error( $terms ) ) {		return $terms;	}	$term_names = array();	foreach ( $terms as $term ) {		$term_names[] = $term->name;	} 	$terms_to_edit = esc_attr( implode( ',', $term_names ) ); 	/**	 * Filters the comma-separated list of terms available to edit.	 *	 * @since 2.8.0	 *	 * @see get_terms_to_edit()	 *	 * @param string $terms_to_edit A comma-separated list of term names.	 * @param string $taxonomy      The taxonomy name for which to retrieve terms.	 */	$terms_to_edit = apply_filters( 'terms_to_edit', $terms_to_edit, $taxonomy ); 	return $terms_to_edit;}

Changelog

Introduced in 2.8.0. 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 6.7.7 tag, from src/wp-admin/includes/taxonomy.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
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