wp_doing_cron(): bool
- Since
- 4.8.0
- Source
wp-includes/load.php:1781
Compatibility
- WordPress
- since 4.8.0
- 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
bool- True if it's a WordPress cron request, false otherwise.
Performance profile
How much work a call to wp_doing_cron() 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
- 7–9
- Plugin surface
- 1 hook
- 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, depending on the branch taken. The body compiles to 9.
Third-party callbacks on 'wp_doing_cron' run inside this call, and their cost is not bounded by anything here.
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()called directly
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_doing_cron() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 7–9 | apply_filters() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 9 instructions, 7–9 executed per call, 1 branch. 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.
Hooks and filters fired · 1
One hook fires while wp_doing_cron() runs, in this order:
- apply_filters( wp_doing_cron )filterline 1789 (+8 into the body)
Filters whether the current request is a WordPress cron request.
Uses · 1
- apply_filters()Calls the callback functions that have been added to a filter hook.
Used by · 10
- Plugin_Upgrader::active_after()Turns off maintenance mode after upgrading an active plugin.
- Plugin_Upgrader::active_before()Turns on maintenance mode before attempting to background update an active plugin.
- Plugin_Upgrader::deactivate_plugin_before_upgrade()Deactivates a plugin before it is upgraded.
- WP_Upgrader::maintenance_mode()Toggles maintenance mode for the site.
- _unzip_file_pclzip()Attempts to unzip an archive using the PclZip library.
- _unzip_file_ziparchive()Attempts to unzip an archive using the ZipArchive class.
- get_core_checksums()Gets and caches the checksums for the given version of WordPress.
- wp_update_plugins()Checks for available updates to plugins based on the latest versions hosted on WordPress.org.
- wp_update_themes()Checks for available updates to themes based on the latest versions hosted on WordPress.org.
- wp_version_check()Checks WordPress version against the newest version.
Source code
function wp_doing_cron() { /** * Filters whether the current request is a WordPress cron request. * * @since 4.8.0 * * @param bool $wp_doing_cron Whether the current request is a WordPress cron request. */ return apply_filters( 'wp_doing_cron', defined( 'DOING_CRON' ) && DOING_CRON );}Changelog
Introduced in 4.8.0. 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 6.9.7 tag, from
src/wp-includes/load.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.