wppaste
WordPress

validate_blog_form(): array

Since
MU (3.0.0)
Source
wp-signup.php:254
Validates the new site sign-up.

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.

Return value

array
Contains the new site data and error messages.
See wpmu_validate_blog_signup() for details.

Performance profile

How much work a call to validate_blog_form() 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

Reads stored settings via get_site_option(), cached per request but not free on a cold cache.

Scaling
Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions
16–19

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 19.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

  • optionnetwork optionget_site_option()one call below validate_blog_form()
  • hookthird-party callbacksapply_filters()one call below validate_blog_form()

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 · 2 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost validate_blog_form() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
!is_user_logged_in()16is_user_logged_in(), wpmu_validate_blog_signup()
is_user_logged_in()19is_user_logged_in(), wp_get_current_user(), wpmu_validate_blog_signup()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 19 instructions, 16–19 executed per call, 1 branch. 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

Used by · 1

Source code

View on Trac View on GitHub 

function validate_blog_form() {	$user = '';	if ( is_user_logged_in() ) {		$user = wp_get_current_user();	} 	return wpmu_validate_blog_signup( $_POST['blogname'], $_POST['blog_title'], $user );}

Changelog

Introduced in MU (3.0.0). Unchanged from 6.7.7 through 7.1.0.

  1. 6.7.7
  2. 6.8.8
  3. 6.9.7
  4. 7.0.4
  5. 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-signup.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.