wp_get_upload_dir(): array
- Since
- 4.5.0
- Source
wp-includes/functions.php:2321
Description
Same as wp_upload_dir() but "light weight" as it doesn't attempt to create the uploads directory.
Intended for use in themes, when only 'basedir' and 'baseurl' are needed, generally in all cases when not uploading files.
Compatibility
- WordPress
- since 4.5.0
- 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.
Return value
array- See wp_upload_dir() for description.
Performance profile
How much work a call to wp_get_upload_dir() 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
- Scaling
- Constant
- Instructions
- 5
- Plugin surface
- None
- Called by
- 10
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5. The body compiles to 5.
Nothing here hands control to plugin code.
10 places in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()one call below wp_get_upload_dir()
Further down the call graph this can also reach option, cache, serialize, query 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 · 1 distinct outcome
One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_get_upload_dir() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 5 | wp_upload_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: 5 instructions, 5 executed per call, 0 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 · 1
- wp_upload_dir()Returns an array containing the current upload directory's path and URL.
Used by · 10
- WP_Debug_Data::get_sizes()Fetches the sizes of the WordPress directories: `wordpress` (ABSPATH), `plugins`, `themes`, and `uploads`.
- _wp_relative_upload_path()Returns relative path to an uploaded file.
- attachment_url_to_postid()Tries to convert an attachment URL into a post ID.
- discover_pingback_server_uri()Finds a pingback server URI based on the given URL.
- get_attached_file()Retrieves attached file path based on attachment ID.
- wp_calculate_image_srcset()A helper function to calculate the image sources to include in a 'srcset' attribute.
- wp_delete_attachment_files()Deletes all files that belong to the given attachment.
- wp_get_attachment_url()Retrieves the URL for an attachment.
- wp_uninitialize_site()Runs the uninitialization routine for a given site.
- wp_unique_filename()Gets a filename that is sanitized and unique for the given directory.
Source code
function wp_get_upload_dir() { return wp_upload_dir( null, false );}Changelog
Introduced in 4.5.0. 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 6.7.7 tag, from
src/wp-includes/functions.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.