wp_http_supports( array $capabilities = array(), string $url = null ): bool
- Since
- 3.2.0
- Source
wp-includes/http.php:398
Compatibility
- WordPress
- since 3.2.0
- 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
$capabilitiesarrayoptional- Array of capabilities to test or a wp_remote_request() $args array.Default:
array() $urlstringoptional- If given, will check if the URL requires SSL and adds that requirement to the capabilities array.Default:
null
Return value
bool
Performance profile
How much work a call to wp_http_supports() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 13–49
- Plugin surface
- None
- Called by
- 14
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 49.
Nothing here hands control to plugin code.
14 places in core call this, so the cost is paid more often than your own code shows.
What one call costs · 6 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_http_supports() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!$capabilities | 13–15 | wp_parse_args(), ::WpOrg\\Requests\\Requests() |
$capabilities && $count !== false | 23–25 | wp_parse_args(), array_keys(), array_filter(), ::WpOrg\\Requests\\Requests() |
!$capabilities && !isset($capabilities) | 24–26 | wp_parse_args(), parse_url(), ::WpOrg\\Requests\\Requests() |
$capabilities && $count !== false && !isset($capabilities) | 34–36 | wp_parse_args(), array_keys(), array_filter(), parse_url(), ::WpOrg\\Requests\\Requests() |
$capabilities && $count === false | 36–38 | wp_parse_args(), array_keys(), array_filter(), array_values(), array_fill(), array_combine(), ::WpOrg\\Requests\\Requests() |
$capabilities && $count === false && !isset($capabilities) | 47–49 | wp_parse_args(), array_keys(), array_filter(), array_values(), array_fill(), array_combine(), parse_url(), ::WpOrg\\Requests\\Requests() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 49 instructions, 13–49 executed per call, 6 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
- wp_parse_args()Merges user defined arguments into defaults array.
- \WpOrg\Requests\Requests::has_capabilities()
Used by · 14
- WP_Community_Events::get_events()Gets data about events near a particular location.
- WP_REST_Pattern_Directory_Controller::get_items()Search and retrieve block patterns metadata
- WP_Site_Health::get_test_ssl_support()Checks if the HTTP API can handle SSL/TLS requests.
- get_core_checksums()Gets and caches the checksums for the given version of WordPress.
- plugins_api()Retrieves plugin installer pages from the WordPress.org Plugins API.
- themes_api()Retrieves theme installer pages from the WordPress.org Themes API.
- translations_api()Retrieve translations from WordPress Translation API.
- wp_check_browser_version()Checks if the user needs a browser update.
- wp_check_php_version()Checks if the user needs to update PHP.
- wp_credits()Retrieves the contributor credits.
- wp_get_popular_importers()Returns a list from WordPress.org of popular importer plugins.
- wp_update_plugins()Checks for available updates to plugins based on the latest versions hosted on WordPress.org.
Show all 14
- wp_update_themes()Checks for available updates to themes based on the latest versions hosted on WordPress.org.
- wp_version_check()Checks WordPress version against the newest version.
Source code
function wp_http_supports( $capabilities = array(), $url = null ) { $capabilities = wp_parse_args( $capabilities ); $count = count( $capabilities ); // If we have a numeric $capabilities array, spoof a wp_remote_request() associative $args array. if ( $count && count( array_filter( array_keys( $capabilities ), 'is_numeric' ) ) === $count ) { $capabilities = array_combine( array_values( $capabilities ), array_fill( 0, $count, true ) ); } if ( $url && ! isset( $capabilities['ssl'] ) ) { $scheme = parse_url( $url, PHP_URL_SCHEME ); if ( 'https' === $scheme || 'ssl' === $scheme ) { $capabilities['ssl'] = true; } } return WpOrg\Requests\Requests::has_capabilities( $capabilities );}Changelog
Introduced in 3.2.0. 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 7.0.4 tag, from
src/wp-includes/http.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.