make_site_theme(): string|false
- Since
- 1.5.0
- Source
wp-admin/includes/upgrade.php:3602
Description
}
Compatibility
- WordPress
- since 1.5.0
- 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|false
Performance profile
How much work a call to make_site_theme() 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
- 16–56
- Plugin surface
- None
- Called by
- 1
Reads or writes the filesystem via is_dir().
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 66.
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
- optionoption read or write
update_option()called directly - filesystemfilesystem access
is_dir()called directly - serializeserialisation
maybe_unserialize()one call below make_site_theme() - hookthird-party callbacks
apply_filters()one call below make_site_theme() - cacheobject cache
wp_cache_get()one call below make_site_theme()
Further down the call graph this can also reach 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 · 9 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost make_site_theme() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
is_dir() | 16 | __get_option(), sanitize_title(), is_dir() |
!is_dir() && !is_writable() | 22 | __get_option(), sanitize_title(), is_dir(), is_writable() |
!is_dir() && is_writable() && !mkdir() | 30 | __get_option(), sanitize_title(), is_dir(), is_writable(), umask(), mkdir() |
!is_dir() && is_writable() && mkdir() && !file_exists() && !make_site_theme_from_default() | 41 | __get_option(), sanitize_title(), is_dir(), is_writable(), umask(), mkdir(), file_exists(), make_site_theme_from_default() |
!is_dir() && is_writable() && mkdir() && file_exists() && !make_site_theme_from_oldschool() | 41 | __get_option(), sanitize_title(), is_dir(), is_writable(), umask(), mkdir(), file_exists(), make_site_theme_from_oldschool() |
!is_dir() && is_writable() && mkdir() && !file_exists() && make_site_theme_from_default() && $current_template !== false | 48 | __get_option(), sanitize_title(), is_dir(), is_writable(), umask(), mkdir(), file_exists(), make_site_theme_from_default(), __get_option() |
!is_dir() && is_writable() && mkdir() && file_exists() && make_site_theme_from_oldschool() && $current_template !== false | 48 | __get_option(), sanitize_title(), is_dir(), is_writable(), umask(), mkdir(), file_exists(), make_site_theme_from_oldschool(), __get_option() |
!is_dir() && is_writable() && mkdir() && !file_exists() && make_site_theme_from_default() && $current_template === false | 56 | __get_option(), sanitize_title(), is_dir(), is_writable(), umask(), mkdir(), file_exists(), make_site_theme_from_default(), __get_option(), update_option(), update_option() |
!is_dir() && is_writable() && mkdir() && file_exists() && make_site_theme_from_oldschool() && $current_template === false | 56 | __get_option(), sanitize_title(), is_dir(), is_writable(), umask(), mkdir(), file_exists(), make_site_theme_from_oldschool(), __get_option(), update_option(), update_option() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 66 instructions, 16–56 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 · 5
- __get_option()Utility version of get_option that is private to installation/upgrade.
- sanitize_title()Sanitizes a string into a slug, which can be used in URLs or HTML attributes.
- make_site_theme_from_oldschool()Creates a site theme from an existing theme.
- make_site_theme_from_default()Creates a site theme from the default theme.
- update_option()Updates the value of an option that was already added.
Used by · 1
- upgrade_130()Execute changes made in WordPress 1.5.
Source code
function make_site_theme() { // Name the theme after the blog. $theme_name = __get_option( 'blogname' ); $template = sanitize_title( $theme_name ); $site_dir = WP_CONTENT_DIR . "/themes/$template"; // If the theme already exists, nothing to do. if ( is_dir( $site_dir ) ) { return false; } // We must be able to write to the themes dir. if ( ! is_writable( WP_CONTENT_DIR . '/themes' ) ) { return false; } umask( 0 ); if ( ! mkdir( $site_dir, 0777 ) ) { return false; } if ( file_exists( ABSPATH . 'wp-layout.css' ) ) { if ( ! make_site_theme_from_oldschool( $theme_name, $template ) ) { // TODO: rm -rf the site theme directory. return false; } } else { if ( ! make_site_theme_from_default( $theme_name, $template ) ) { // TODO: rm -rf the site theme directory. return false; } } // Make the new site theme active. $current_template = __get_option( 'template' ); if ( WP_DEFAULT_THEME === $current_template ) { update_option( 'template', $template ); update_option( 'stylesheet', $template ); } return $template;}Changelog
Introduced in 1.5.0. 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-admin/includes/upgrade.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.