block_core_gallery_dynamic_image_link_attributes( int $attachment_id, array $attributes ): array
- Since
- 7.0.0
- Source
wp-includes/blocks/gallery.php:179
linkTo setting onto a single image.Description
Mirrors the editor's getHrefAndDestination() (see gallery/utils.js).
Compatibility
- WordPress
- since 7.0.0
- PHP
- 7.4–8.6-dev
- 6.7.7
- 6.8.8
- 6.9.7
- 7.0.4
- 7.1.0
Present in 1 of the 5 tracked releases, added in 7.0.0, and compiles on PHP 7.4 through 8.6-dev.
Parameters
$attachment_idint- The image attachment ID.
$attributesarray- The gallery block attributes.
Return value
array- Partial image block attributes (
href,linkDestination,linkTarget,rel,lightbox).
Performance profile
How much work a call to block_core_gallery_dynamic_image_link_attributes() 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
- Scaling
- Constant
- Instructions
- 10–36
- Plugin surface
- None
- Called by
- 1
Reaches the database via get_post().
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 48.
Nothing here hands control to plugin code.
1 place in core call this, so the cost is paid more often than your own code shows.
What it touches
- querycontent query
get_post()one call below block_core_gallery_dynamic_image_link_attributes() - hookthird-party callbacks
apply_filters()one call below block_core_gallery_dynamic_image_link_attributes() - optionoption read or write
get_option()one call below block_core_gallery_dynamic_image_link_attributes()
Further down the call graph this can also reach cache, 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 · 3 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost block_core_gallery_dynamic_image_link_attributes() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 10–31 | none |
| always | 18–32 | wp_get_attachment_url() |
| always | 18–36 | get_attachment_link() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 48 | 10–36 | 10 | |
| 8.5 | 48 | 10–36 | 10 | |
| 8.4 | 48 | 10–36 | 10 | |
| 8.3 | 48 | 10–36 | 10 | |
| 8.2 | 48 | 10–36 | 10 | 1 more instruction than PHP 8.1 |
| 8.1 | 47 | 10–38 | 10 | |
| 7.4 | 47 | 10–38 | 10 |
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
- wp_get_attachment_url()Retrieves the URL for an attachment.
- get_attachment_link()Retrieves the permalink for an attachment.
Used by · 1
- block_core_gallery_render_dynamic_image()Renders a single `core/image` block for a Gallery block running in dynamic mode, applying the gallery-wide settings that affect how an image renders.
Source code
function block_core_gallery_dynamic_image_link_attributes( $attachment_id, $attributes ) { $link_to = $attributes['linkTo'] ?? 'none'; $attrs = array(); switch ( $link_to ) { // Gutenberg uses 'media'/'attachment'; WP Core uses 'file'/'post'. case 'media': case 'file': $attrs['href'] = wp_get_attachment_url( $attachment_id ); $attrs['linkDestination'] = 'media'; break; case 'attachment': case 'post': $attrs['href'] = get_attachment_link( $attachment_id ); $attrs['linkDestination'] = 'attachment'; break; case 'lightbox': $attrs['linkDestination'] = 'none'; $attrs['lightbox'] = array( 'enabled' => true ); break; } if ( ! empty( $attrs['href'] ) && '_blank' === ( $attributes['linkTarget'] ?? '' ) ) { $attrs['linkTarget'] = '_blank'; $attrs['rel'] = 'noopener'; } return $attrs;}Changelog
Introduced in 7.0.0.
Signature, return type and hooks compared across 1 parsed release.
About this page
- Parsed data
- Generated from the wordpress-develop 7.1.0 tag, from
src/wp-includes/blocks/gallery.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.