WP_Themes_List_Table::no_items()
- Source
wp-admin/includes/class-wp-themes-list-table.php:90
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.
Performance profile
How much work a call to WP_Themes_List_Table::no_items() 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
- 6–34
- Plugin surface
- None
- Called by
- 1
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 80.
Nothing here hands control to plugin code.
1 place 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()one call below WP_Themes_List_Table::no_items()
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 · 8 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Themes_List_Table::no_items() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 6–8 | _e() |
!is_multisite() && !current_user_can() | 25 | get_current_blog_id(), is_multisite(), current_user_can(), __(), get_site_option(), printf() |
!is_multisite() && current_user_can() | 25 | get_current_blog_id(), is_multisite(), current_user_can(), __(), admin_url(), printf() |
is_multisite() && !current_user_can() | 29 | get_current_blog_id(), is_multisite(), current_user_can(), current_user_can(), __(), get_site_option(), printf() |
is_multisite() | 30 | get_current_blog_id(), is_multisite(), current_user_can(), current_user_can(), __(), network_admin_url(), printf() |
is_multisite() | 33 | get_current_blog_id(), is_multisite(), current_user_can(), current_user_can(), current_user_can(), __(), get_site_option(), printf() |
is_multisite() | 34 | get_current_blog_id(), is_multisite(), current_user_can(), current_user_can(), current_user_can(), __(), network_admin_url(), printf() |
is_multisite() && current_user_can() | 34 | get_current_blog_id(), is_multisite(), current_user_can(), current_user_can(), __(), network_admin_url(), network_admin_url(), printf() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 80 instructions, 6–34 executed per call, 7 branches. 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 · 8
- _e()Displays translated text.
- get_current_blog_id()Retrieves the current site ID.
- is_multisite()Determines whether Multisite is enabled.
- current_user_can()Returns whether the current user has the specified capability.
- __()Retrieves the translation of $text.
- network_admin_url()Retrieves the URL to the admin area for the network.
- admin_url()Retrieves the URL to the admin area for the current site.
- get_site_option()Retrieve an option value for the current network based on name of option.
Used by · 1
Source code
public function no_items() { if ( $this->search_terms || $this->features ) { _e( 'No items found.' ); return; } $blog_id = get_current_blog_id(); if ( is_multisite() ) { if ( current_user_can( 'install_themes' ) && current_user_can( 'manage_network_themes' ) ) { printf( /* translators: 1: URL to Themes tab on Edit Site screen, 2: URL to Add Themes screen. */ __( 'You only have one theme enabled for this site right now. Visit the Network Admin to <a href="%1$s">enable</a> or <a href="%2$s">install</a> more themes.' ), network_admin_url( 'site-themes.php?id=' . $blog_id ), network_admin_url( 'theme-install.php' ) ); return; } elseif ( current_user_can( 'manage_network_themes' ) ) { printf( /* translators: %s: URL to Themes tab on Edit Site screen. */ __( 'You only have one theme enabled for this site right now. Visit the Network Admin to <a href="%s">enable</a> more themes.' ), network_admin_url( 'site-themes.php?id=' . $blog_id ) ); return; } // Else, fallthrough. install_themes doesn't help if you can't enable it. } else { if ( current_user_can( 'install_themes' ) ) { printf( /* translators: %s: URL to Add Themes screen. */ __( 'You only have one theme installed right now. Live a little! You can choose from over 1,000 free themes in the WordPress Theme Directory at any time: just click on the <a href="%s">Install Themes</a> tab above.' ), admin_url( 'theme-install.php' ) ); return; } } // Fallthrough. printf( /* translators: %s: Network title. */ __( 'Only the active theme is available to you. Contact the %s administrator for information about accessing additional themes.' ), get_site_option( 'site_name' ) ); }Changelog
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 7.0.4 tag, from
src/wp-admin/includes/class-wp-themes-list-table.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.