get_taxonomies_for_attachments( string $output = 'names' ): string[]|WP_Taxonomy[]
- Since
- 3.5.0
- Source
wp-includes/media.php:4076
Description
Handles mime-type-specific taxonomies such as attachment:image and attachment:video.
Compatibility
- WordPress
- since 3.5.0
- 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
$outputstringoptional- The type of taxonomy output to return. Accepts 'names' or 'objects'.
Default 'names'.Default:'names'
Return value
string[]|WP_Taxonomy[]- Array of names or objects of registered taxonomies for attachments.
Performance profile
How much work a call to get_taxonomies_for_attachments() 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
- Light
- Scaling
- Scales with input
- Instructions
- 9–10
- Plugin surface
- None
- Called by
- 3
Touches nothing outside its own arguments.
The body loops, so the work grows with what you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 28.
Nothing here hands control to plugin code.
3 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 get_taxonomies_for_attachments() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 9–10 | get_taxonomies() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 28 | 9–10 | 7 | |
| 8.5 | 28 | 9–10 | 7 | |
| 8.4 | 28 | 9–10 | 7 | 3 fewer instructions than PHP 8.3 |
| 8.3 | 31 | 9–10 | 7 | |
| 8.2 | 31 | 9–10 | 7 | |
| 8.1 | 31 | 9–10 | 7 | |
| 7.4 | 31 | 9–10 | 7 |
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 · 2
- get_taxonomies()Retrieves a list of registered taxonomy names or objects.
- str_starts_with()Polyfill for `str_starts_with()` function added in PHP 8.0.
Used by · 3
- WP_Media_List_Table::get_columns()
- WP_Query::get_posts()Retrieves an array of posts based on query variables.
- wp_ajax_query_attachments()Handles querying attachments via AJAX.
Source code
function get_taxonomies_for_attachments( $output = 'names' ) { $taxonomies = array(); foreach ( get_taxonomies( array(), 'objects' ) as $taxonomy ) { foreach ( $taxonomy->object_type as $object_type ) { if ( 'attachment' === $object_type || str_starts_with( $object_type, 'attachment:' ) ) { if ( 'names' === $output ) { $taxonomies[] = $taxonomy->name; } else { $taxonomies[ $taxonomy->name ] = $taxonomy; } break; } } } return $taxonomies;}Changelog
Introduced in 3.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
About this page
- Parsed data
- Generated from the wordpress-develop 6.8.8 tag, from
src/wp-includes/media.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
- Something wrong on this page? Report it and it gets fixed in the next regeneration.