WP_Importer::set_user( int $user_id ): int|void
- Source
wp-admin/includes/class-wp-importer.php:163
Compatibility
- WordPress
- core
- 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
$user_idint
Return value
int|void
Performance profile
How much work a call to WP_Importer::set_user() 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
- 12–21
- Plugin surface
- None
- Called by
- 0
Reads or writes the filesystem via fwrite().
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 24.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- filesystemfilesystem access
fwrite()called directly - querycontent query
get_user_by()one call below WP_Importer::set_user() - hookthird-party callbacks
apply_filters()one call below WP_Importer::set_user()
What one call costs · 6 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Importer::set_user() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
$user_id && wp_set_current_user() | 12 | wp_set_current_user() |
!$user_id && wp_set_current_user() | 14 | username_exists(), wp_set_current_user() |
$user_id | 15 | fwrite(), exit() |
!$user_id | 17 | username_exists(), fwrite(), exit() |
$user_id && !wp_set_current_user() | 19 | wp_set_current_user(), fwrite(), exit() |
!$user_id && !wp_set_current_user() | 21 | username_exists(), wp_set_current_user(), fwrite(), exit() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 24 | 12–21 | 3 | |
| 8.5 | 24 | 12–21 | 3 | |
| 8.4 | 24 | 12–21 | 3 | 1 fewer instruction than PHP 8.3 |
| 8.3 | 25 | 14–21 | 3 | |
| 8.2 | 25 | 14–21 | 3 | |
| 8.1 | 25 | 14–21 | 3 | |
| 7.4 | 25 | 14–21 | 3 |
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
- username_exists()Determines whether the given username exists.
- wp_set_current_user()Changes the current user by ID or name.
Source code
public function set_user( $user_id ) { if ( is_numeric( $user_id ) ) { $user_id = (int) $user_id; } else { $user_id = (int) username_exists( $user_id ); } if ( ! $user_id || ! wp_set_current_user( $user_id ) ) { fwrite( STDERR, "Error: can not find user\n" ); exit; } return $user_id; }Changelog
One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
int|void to int.verified against sourceAbout this page
- Parsed data
- Generated from the wordpress-develop 6.8.8 tag, from
src/wp-admin/includes/class-wp-importer.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.