do_dismiss_core_update()
- Since
- 2.7.0
- Source
wp-admin/update-core.php:949
Compatibility
- WordPress
- since 2.7.0
- 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.
Performance profile
How much work a call to do_dismiss_core_update() 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
- Moderate
- Scaling
- Constant
- Instructions
- 17–33
- Plugin surface
- None
- Called by
- 0
Reads stored settings via get_site_option(), cached per request but not free on a cold cache.
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 36.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- transienttransient
get_site_transient()one call below do_dismiss_core_update() - optionnetwork option
get_site_option()one call below do_dismiss_core_update() - hookthird-party callbacks
apply_filters()one call below do_dismiss_core_update()
Further down the call graph this can also reach cache, serialize and query. 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 do_dismiss_core_update() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 17–21 | find_core_update() |
| always | 29–33 | find_core_update(), dismiss_core_update(), wp_nonce_url(), wp_redirect(), exit() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 36 | 17–33 | 3 | |
| 8.5 | 36 | 17–33 | 3 | |
| 8.4 | 36 | 17–33 | 3 | 2 more instructions than PHP 8.3 |
| 8.3 | 34 | 17–31 | 3 | |
| 8.2 | 34 | 17–31 | 3 | |
| 8.1 | 34 | 17–31 | 3 | 2 fewer instructions than PHP 7.4 |
| 7.4 | 36 | 17–33 | 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 · 4
- find_core_update()Finds the available update for WordPress core.
- dismiss_core_update()Dismisses core update.
- wp_redirect()Redirects to another page.
- wp_nonce_url()Retrieves URL with nonce added to URL query.
Source code
function do_dismiss_core_update() { $version = isset( $_POST['version'] ) ? $_POST['version'] : false; $locale = isset( $_POST['locale'] ) ? $_POST['locale'] : 'en_US'; $update = find_core_update( $version, $locale ); if ( ! $update ) { return; } dismiss_core_update( $update ); wp_redirect( wp_nonce_url( 'update-core.php?action=upgrade-core', 'upgrade-core' ) ); exit;}Changelog
Introduced in 2.7.0. 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-admin/update-core.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.