WP_Theme::get_allowed_on_network(): string[]
- Since
- 3.4.0
- Source
wp-includes/class-wp-theme.php:1696
Compatibility
- WordPress
- since 3.4.0
- 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[]- Array of stylesheet names.
Performance profile
How much work a call to WP_Theme::get_allowed_on_network() 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
- 9–14
- Plugin surface
- 1 hook
- Called by
- 4
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 14.
Third-party callbacks on 'allowed_themes' run inside this call, and their cost is not bounded by anything here.
4 places in core call this, so the cost is paid more often than your own code shows.
What it touches
- optionnetwork option
get_site_option()called directly - hookthird-party callbacks
apply_filters()called directly
Further down the call graph this can also reach cache, serialize, query 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 WP_Theme::get_allowed_on_network() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
isset($allowed_themes) | 9 | apply_filters() |
!isset($allowed_themes) | 14 | get_site_option(), 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: 14 instructions, 9–14 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_Theme::get_allowed_on_network() runs, in this order:
- apply_filters( allowed_themes )filterline 1709 (+13 into the body)
Filters the array of themes allowed on the network.
Uses · 2
- get_site_option()Retrieve an option value for the current network based on name of option.
- apply_filters()Calls the callback functions that have been added to a filter hook.
Used by · 4
- WP_Theme::get_allowed()Returns array of stylesheet names of themes allowed on the site or network.
- WP_Theme::is_allowed()Determines whether the theme is allowed (multisite only).
- get_site_allowed_themes()Deprecated functionality for getting themes network-enabled themes.
- wp_get_themes()Returns an array of WP_Theme objects based on the arguments.
Source code
public static function get_allowed_on_network() { static $allowed_themes; if ( ! isset( $allowed_themes ) ) { $allowed_themes = (array) get_site_option( 'allowedthemes' ); } /** * Filters the array of themes allowed on the network. * * @since MU (3.0.0) * * @param string[] $allowed_themes An array of theme stylesheet names. */ $allowed_themes = apply_filters( 'allowed_themes', $allowed_themes ); return $allowed_themes; }Changelog
Introduced in 3.4.0. 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/class-wp-theme.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.