avoid_blog_page_permalink_collision( array $data, array $postarr ): array
- Since
- 3.0.0
- Source
wp-admin/includes/ms.php:722
Description
In a subdirectory installation this will make sure that a site and a post do not use the same subdirectory by checking for a site with the same name as a new post.
Compatibility
- WordPress
- since 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
$dataarray- An array of post data.
$postarrarray- An array of posts. Not currently used.
Return value
array- The new array of post data after checking for collisions.
Performance profile
How much work a call to avoid_blog_page_permalink_collision() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Light
- Scaling
- Scales with input
- Instructions
- 6–35
- Plugin surface
- None
- Called by
- 0
Touches nothing outside its own arguments.
The body loops, so the work grows with what you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 46.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What one call costs · 3 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost avoid_blog_page_permalink_collision() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 6–14 | is_subdomain_install() |
!is_subdomain_install() && isset($data) | 17–31 | is_subdomain_install(), is_main_site() |
!is_subdomain_install() && isset($data) && is_main_site() && $c && !get_id_from_blogname() | 31–35 | is_subdomain_install(), is_main_site(), get_id_from_blogname() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 46 instructions, 6–35 executed per call, 10 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 · 3
- is_subdomain_install()Whether a subdomain configuration is enabled.
- is_main_site()Determines whether a site is the main site of the current network.
- get_id_from_blogname()Retrieves a site's ID given its (subdomain or directory) slug.
Source code
function avoid_blog_page_permalink_collision( $data, $postarr ) { if ( is_subdomain_install() ) { return $data; } if ( 'page' !== $data['post_type'] ) { return $data; } if ( ! isset( $data['post_name'] ) || '' === $data['post_name'] ) { return $data; } if ( ! is_main_site() ) { return $data; } if ( isset( $data['post_parent'] ) && $data['post_parent'] ) { return $data; } $post_name = $data['post_name']; $c = 0; while ( $c < 10 && get_id_from_blogname( $post_name ) ) { $post_name .= mt_rand( 1, 10 ); ++$c; } if ( $post_name !== $data['post_name'] ) { $data['post_name'] = $post_name; } return $data;}Changelog
Introduced in 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 7.1.0 tag, from
src/wp-admin/includes/ms.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.