get_last_updated( mixed $deprecated = '', int $start = 0, int $quantity = 40 ): array
- Since
- MU (3.0.0)
- Source
wp-includes/ms-blogs.php:823
Compatibility
- WordPress
- since MU (3.0.0)
- 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.
Parameters
$deprecatedmixedoptional- Not used.Default:
'' $startintoptional- Number of blogs to offset the query. Used to build LIMIT clause.
Can be used for pagination. Default 0.Default:0 $quantityintoptional- The maximum number of blogs to retrieve. Default 40.Default:
40
Return value
array- The list of blogs.
Performance profile
How much work a call to get_last_updated() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Heavy
- Scaling
- Constant
- Instructions
- 24–28
- Plugin surface
- None
- Called by
- 0
Reaches the database via ->get_results().
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 28.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- sqldatabase query
->get_results()called directly - hookthird-party callbacks
do_action()one call below get_last_updated()
Further down the call graph this can also reach query, option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost get_last_updated() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
empty($deprecated) | 24 | get_current_network_id(), ->prepare(), ->get_results() |
!empty($deprecated) | 28 | _deprecated_argument(), get_current_network_id(), ->prepare(), ->get_results() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 28 instructions, 24–28 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.
Uses · 2
- _deprecated_argument()Marks a function argument as deprecated and inform when it has been used.
- get_current_network_id()Retrieves the current network ID.
Source code
function get_last_updated( $deprecated = '', $start = 0, $quantity = 40 ) { global $wpdb; if ( ! empty( $deprecated ) ) { _deprecated_argument( __FUNCTION__, 'MU' ); // Never used. } return $wpdb->get_results( $wpdb->prepare( "SELECT blog_id, domain, path FROM $wpdb->blogs WHERE site_id = %d AND public = '1' AND archived = '0' AND mature = '0' AND spam = '0' AND deleted = '0' AND last_updated != '0000-00-00 00:00:00' ORDER BY last_updated DESC limit %d, %d", get_current_network_id(), $start, $quantity ), ARRAY_A );}Changelog
Introduced in MU (3.0.0). 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 7.1.0 tag, from
src/wp-includes/ms-blogs.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.