get_blogaddress_by_id( int $blog_id ): string
- Since
- MU (3.0.0)
- Source
wp-includes/ms-blogs.php:46
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
$blog_idint- Site ID.
Return value
string- Full site URL if found. Empty string if not.
Performance profile
How much work a call to get_blogaddress_by_id() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 9–28
- Plugin surface
- None
- Called by
- 2
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 30.
Nothing here hands control to plugin code.
2 places in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()one call below get_blogaddress_by_id()
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost get_blogaddress_by_id() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
empty($bloginfo) | 9 | get_site() |
!empty($bloginfo) | 27–28 | get_site(), parse_url(), esc_url() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 30 instructions, 9–28 executed per call, 2 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 · 2
- get_site()Retrieves site data given a site ID or site object.
- esc_url()Checks and cleans a URL.
Used by · 2
- install_blog()Install an empty blog.
- wpmu_welcome_notification()Notifies the site administrator that their site activation was successful.
Source code
function get_blogaddress_by_id( $blog_id ) { $bloginfo = get_site( (int) $blog_id ); if ( empty( $bloginfo ) ) { return ''; } $scheme = parse_url( $bloginfo->home, PHP_URL_SCHEME ); $scheme = empty( $scheme ) ? 'http' : $scheme; return esc_url( $scheme . '://' . $bloginfo->domain . $bloginfo->path );}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 6.9.7 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.