validate_blog_signup(): bool
- Since
- MU (3.0.0)
- Source
wp-signup.php:802
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
bool- True if the site sign-up was validated, false on error.
Performance profile
How much work a call to validate_blog_signup() 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
- Scaling
- Constant
- Instructions
- 23–88
- Plugin surface
- 1 hook
- Called by
- 0
Reads stored settings via get_site_option(), cached per request but not free on a cold cache.
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 102.
Third-party callbacks on 'add_signup_meta' run inside this call, and their cost is not bounded by anything here.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()called directly - optionnetwork option
get_site_option()one call below validate_blog_signup()
Further down the call graph this can also reach query, transient, cache, serialize and http. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 5 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost validate_blog_signup() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
->has_errors() | 23 | wpmu_validate_user_signup(), ->has_errors(), signup_user() |
| always | 44 | wpmu_validate_user_signup(), ->has_errors(), wpmu_validate_blog_signup(), ->has_errors(), signup_blog() |
!->has_errors() && empty($value) | 67 | wpmu_validate_user_signup(), ->has_errors(), wpmu_validate_blog_signup(), ->has_errors(), apply_filters(), wpmu_signup_blog(), confirm_blog_signup() |
!->has_errors() && !empty($value) && !$languages | 75 | wpmu_validate_user_signup(), ->has_errors(), wpmu_validate_blog_signup(), ->has_errors(), signup_get_available_languages(), apply_filters(), wpmu_signup_blog(), confirm_blog_signup() |
!->has_errors() && !empty($value) && $languages | 86–88 | wpmu_validate_user_signup(), ->has_errors(), wpmu_validate_blog_signup(), ->has_errors(), signup_get_available_languages(), sanitize_text_field(), wp_unslash(), apply_filters(), wpmu_signup_blog(), confirm_blog_signup() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 102 | 23–88 | 5 | |
| 8.5 | 102 | 23–88 | 5 | |
| 8.4 | 102 | 23–88 | 5 | 3 fewer instructions than PHP 8.3 |
| 8.3 | 105 | 23–91 | 5 | |
| 8.2 | 105 | 23–91 | 5 | |
| 8.1 | 105 | 23–91 | 5 | |
| 7.4 | 105 | 23–91 | 5 |
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.
Hooks and filters fired · 1
One hook fires while validate_blog_signup() runs, in this order:
- apply_filters( add_signup_meta )filterline 847 (+45 into the body)
Filters the new default site meta variables.
Uses · 10
- wpmu_validate_user_signup()Sanitizes and validates data required for a user sign-up.
- signup_user()Shows a form for a visitor to sign up for a new user account.
- wpmu_validate_blog_signup()Processes new site registrations.
- signup_blog()Shows a form for a user or visitor to sign up for a new site.
- signup_get_available_languages()Retrieves languages available during the site/user sign-up process.
- wp_unslash()Removes slashes from a string or recursively removes slashes from strings within an array.
- sanitize_text_field()Sanitizes a string from user input or from the database.
- apply_filters()Calls the callback functions that have been added to a filter hook.
- wpmu_signup_blog()Records site signup information for future activation.
- confirm_blog_signup()Shows a message confirming that the new site has been registered and is awaiting activation.
Source code
function validate_blog_signup() { // Re-validate user info. $user_result = wpmu_validate_user_signup( $_POST['user_name'], $_POST['user_email'] ); $user_name = $user_result['user_name']; $user_email = $user_result['user_email']; $user_errors = $user_result['errors']; if ( $user_errors->has_errors() ) { signup_user( $user_name, $user_email, $user_errors ); return false; } $result = wpmu_validate_blog_signup( $_POST['blogname'], $_POST['blog_title'] ); $domain = $result['domain']; $path = $result['path']; $blogname = $result['blogname']; $blog_title = $result['blog_title']; $errors = $result['errors']; if ( $errors->has_errors() ) { signup_blog( $user_name, $user_email, $blogname, $blog_title, $errors ); return false; } $public = (int) $_POST['blog_public']; $signup_meta = array( 'lang_id' => 1, 'public' => $public, ); // Handle the language setting for the new site. if ( ! empty( $_POST['WPLANG'] ) ) { $languages = signup_get_available_languages(); if ( in_array( $_POST['WPLANG'], $languages, true ) ) { $language = wp_unslash( sanitize_text_field( $_POST['WPLANG'] ) ); if ( $language ) { $signup_meta['WPLANG'] = $language; } } } /** This filter is documented in wp-signup.php */ $meta = apply_filters( 'add_signup_meta', $signup_meta ); wpmu_signup_blog( $domain, $path, $blog_title, $user_name, $user_email, $meta ); confirm_blog_signup( $domain, $path, $blog_title, $user_name, $user_email, $meta ); return true;}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 7.1.0 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.