wp_get_direct_update_https_url(): string
- Since
- 5.7.0
- Source
wp-includes/functions.php:8868
Description
A URL will only be returned if the WP_DIRECT_UPDATE_HTTPS_URL environment variable is specified or by using the 'wp_direct_update_https_url' filter. This allows hosts to send users directly to the page where they can update their site to use HTTPS.
Compatibility
- WordPress
- since 5.7.0
- 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- URL for directly updating to HTTPS or empty string.
Performance profile
How much work a call to wp_get_direct_update_https_url() 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
- 12–16
- Plugin surface
- 1 hook
- Called by
- 1
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 16.
Third-party callbacks on 'wp_direct_update_https_url' run inside this call, and their cost is not bounded by anything here.
1 place in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()called directly
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 wp_get_direct_update_https_url() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 12 | getenv(), apply_filters() |
| always | 16 | getenv(), getenv(), apply_filters() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 16 instructions, 12–16 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.
Hooks and filters fired · 1
One hook fires while wp_get_direct_update_https_url() runs, in this order:
- apply_filters( wp_direct_update_https_url )filterline 8882 (+14 into the body)
Filters the URL for directly updating the PHP version the site is running on from the host.
Uses · 1
- apply_filters()Calls the callback functions that have been added to a filter hook.
Used by · 1
- WP_Site_Health::get_test_https_status()Tests if the site is serving content over HTTPS.
Source code
function wp_get_direct_update_https_url() { $direct_update_url = ''; if ( false !== getenv( 'WP_DIRECT_UPDATE_HTTPS_URL' ) ) { $direct_update_url = getenv( 'WP_DIRECT_UPDATE_HTTPS_URL' ); } /** * Filters the URL for directly updating the PHP version the site is running on from the host. * * @since 5.7.0 * * @param string $direct_update_url URL for directly updating PHP. */ $direct_update_url = apply_filters( 'wp_direct_update_https_url', $direct_update_url ); return $direct_update_url;}Changelog
Introduced in 5.7.0. 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-includes/functions.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.