install_theme_information()
- Since
- 2.8.0
- Source
wp-admin/includes/theme-install.php:255
Compatibility
- WordPress
- since 2.8.0
- 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.
Performance profile
How much work a call to install_theme_information() 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
- Expensive
- Scaling
- Constant
- Instructions
- 33–40
- Plugin surface
- None
- Called by
- 0
Reaches an outbound HTTP request via wp_remote_get().
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 40.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()one call below install_theme_information() - httpoutbound HTTP request
wp_remote_get()one call below install_theme_information() - optionoption read or write
get_option()one call below install_theme_information()
Further down the call graph this can also reach query, 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 · 4 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost install_theme_information() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!is_wp_error() && isset($wp_list_table) | 33 | wp_unslash(), slug(), is_wp_error(), __(), iframe_header(), ->theme_installer_single(), iframe_footer(), exit() |
is_wp_error() && isset($wp_list_table) | 36 | wp_unslash(), slug(), is_wp_error(), wp_die(), __(), iframe_header(), ->theme_installer_single(), iframe_footer(), exit() |
!is_wp_error() && !isset($wp_list_table) | 37 | wp_unslash(), slug(), is_wp_error(), __(), iframe_header(), _get_list_table(), ->theme_installer_single(), iframe_footer(), exit() |
is_wp_error() && !isset($wp_list_table) | 40 | wp_unslash(), slug(), is_wp_error(), wp_die(), __(), iframe_header(), _get_list_table(), ->theme_installer_single(), iframe_footer(), exit() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 40 | 33–40 | 2 | |
| 8.5 | 40 | 33–40 | 2 | |
| 8.4 | 40 | 33–40 | 2 | 2 more instructions than PHP 8.3 |
| 8.3 | 38 | 31–38 | 2 | |
| 8.2 | 38 | 31–38 | 2 | |
| 8.1 | 38 | 31–38 | 2 | |
| 7.4 | 38 | 31–38 | 2 |
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
- themes_api()Retrieves theme installer pages from the WordPress.org Themes API.
- wp_unslash()Removes slashes from a string or recursively removes slashes from strings within an array.
- is_wp_error()Checks whether the given variable is a WordPress Error.
- wp_die()Kills WordPress execution and displays HTML page with an error message.
- iframe_header()Generic Iframe header for use with Thickbox.
- __()Retrieves the translation of $text.
- _get_list_table()Fetches an instance of a WP_List_Table class.
- iframe_footer()Generic Iframe footer for use with Thickbox.
Source code
function install_theme_information() { global $wp_list_table; $theme = themes_api( 'theme_information', array( 'slug' => wp_unslash( $_REQUEST['theme'] ) ) ); if ( is_wp_error( $theme ) ) { wp_die( $theme ); } iframe_header( __( 'Theme Installation' ) ); if ( ! isset( $wp_list_table ) ) { $wp_list_table = _get_list_table( 'WP_Theme_Install_List_Table' ); } $wp_list_table->theme_installer_single( $theme ); iframe_footer(); exit;}Changelog
Introduced in 2.8.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
none to never.verified against sourceAbout this page
- Parsed data
- Generated from the wordpress-develop 6.7.7 tag, from
src/wp-admin/includes/theme-install.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.