get_the_modified_author(): string|void
- Since
- 2.8.0
- Source
wp-includes/author-template.php:92
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.
Return value
string|void- The author's display name, empty string if unknown.
Performance profile
How much work a call to get_the_modified_author() 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
- 12–23
- Plugin surface
- 1 hook
- 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 25.
Third-party callbacks on 'the_modified_author' run inside this call, and their cost is not bounded by anything here.
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()called directly - hookthird-party callbacks
apply_filters()called directly
Further down the call graph this can also reach cache, serialize, option 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 · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost get_the_modified_author() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 12 | get_post(), get_post_meta() |
| always | 22–23 | get_post(), get_post_meta(), get_userdata(), apply_filters() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 25 | 12–23 | 2 | |
| 8.5 | 25 | 12–23 | 2 | |
| 8.4 | 25 | 12–23 | 2 | |
| 8.3 | 25 | 12–23 | 2 | |
| 8.2 | 25 | 12–23 | 2 | |
| 8.1 | 25 | 12–23 | 2 | 2 fewer instructions than PHP 7.4 |
| 7.4 | 27 | 13–25 | 2 |
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_the_modified_author() runs, in this order:
- apply_filters( the_modified_author )filterline 105 (+13 into the body)
Filters the display name of the author who last edited the current post.
Uses · 4
- get_post_meta()Retrieves a post meta field for the given post ID.
- get_post()Retrieves post data given a post ID or post object.
- get_userdata()Retrieves user info by user ID.
- apply_filters()Calls the callback functions that have been added to a filter hook.
Used by · 1
- the_modified_author()Displays the name of the author who last edited the current post, if the author's ID is available.
Source code
function get_the_modified_author() { $last_id = get_post_meta( get_post()->ID, '_edit_last', true ); if ( $last_id ) { $last_user = get_userdata( $last_id ); /** * Filters the display name of the author who last edited the current post. * * @since 2.8.0 * * @param string $display_name The author's display name, empty string if unknown. */ return apply_filters( 'the_modified_author', $last_user ? $last_user->display_name : '' ); }}Changelog
Introduced in 2.8.0. 2 changes between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$post added.verified against sourcestring|void to string|null.verified against sourceAbout this page
- Parsed data
- Generated from the wordpress-develop 6.8.8 tag, from
src/wp-includes/author-template.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.