WP_Site_Health::get_test_php_extensions(): array
- Since
- 5.2.0
- Source
wp-admin/includes/class-wp-site-health.php:903
Description
This test builds on the recommendations made by the WordPress Hosting Team as seen at https://make.wordpress.org/hosting/handbook/handbook/server-environment/#php-extensions
Compatibility
- WordPress
- since 5.2.0
- 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.
Return value
array
Performance profile
How much work a call to WP_Site_Health::get_test_php_extensions() 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
- 59–83
- Plugin surface
- 1 hook
- Called by
- 0
Touches nothing outside its own arguments.
The body loops, so the work grows with how much data it finds.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 183.
Third-party callbacks on 'site_status_test_php_modules' 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
Further down the call graph this can also reach query, option, 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 · 3 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Site_Health::get_test_php_extensions() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 59–73 | __(), __(), __(), __(), __(), esc_url(), __(), sprintf(), apply_filters() |
| always | 72–78 | __(), __(), __(), __(), __(), esc_url(), __(), sprintf(), apply_filters(), __() |
| always | 77–83 | __(), __(), __(), __(), __(), esc_url(), __(), sprintf(), apply_filters(), __(), __() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 183 | 59–83 | 20 | |
| 8.5 | 183 | 59–83 | 20 | |
| 8.4 | 183 | 59–83 | 20 | 2 fewer instructions than PHP 8.3 |
| 8.3 | 185 | 60–84 | 20 | |
| 8.2 | 185 | 60–84 | 20 | |
| 8.1 | 185 | 60–84 | 20 | 4 fewer instructions than PHP 7.4 |
| 7.4 | 189 | 60–84 | 20 |
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_Site_Health::get_test_php_extensions() runs, in this order:
- apply_filters( site_status_test_php_modules )filterline 1050 (+147 into the body)
Filters the array representing all the modules we wish to test for.
Uses · 4
- __()Retrieves the translation of $text.
- esc_url()Checks and cleans a URL.
- apply_filters()Calls the callback functions that have been added to a filter hook.
- WP_Site_Health::test_php_extension_availability()Checks if the passed extension or function are available.
Source code
public function get_test_php_extensions() { $result = array( 'label' => __( 'Required and recommended modules are installed' ), 'status' => 'good', 'badge' => array( 'label' => __( 'Performance' ), 'color' => 'blue', ), 'description' => sprintf( '<p>%s</p><p>%s</p>', __( 'PHP modules perform most of the tasks on the server that make your site run. Any changes to these must be made by your server administrator.' ), sprintf( /* translators: 1: Link to the hosting group page about recommended PHP modules. 2: Additional link attributes. 3: Accessibility text. */ __( 'The WordPress Hosting Team maintains a list of those modules, both recommended and required, in <a href="%1$s" %2$s>the team handbook%3$s</a>.' ), /* translators: Localized team handbook, if one exists. */ esc_url( __( 'https://make.wordpress.org/hosting/handbook/handbook/server-environment/#php-extensions' ) ), 'target="_blank"', sprintf( '<span class="screen-reader-text"> %s</span><span aria-hidden="true" class="dashicons dashicons-external"></span>', /* translators: Hidden accessibility text. */ __( '(opens in a new tab)' ) ) ) ), 'actions' => '', 'test' => 'php_extensions', ); $modules = array( 'curl' => array( 'function' => 'curl_version', 'required' => false, ), 'dom' => array( 'class' => 'DOMNode', 'required' => false, ), 'exif' => array( 'function' => 'exif_read_data', 'required' => false, ), 'fileinfo' => array( 'function' => 'finfo_file', 'required' => false, ), 'hash' => array( 'function' => 'hash', 'required' => true, ), 'imagick' => array( 'extension' => 'imagick', 'required' => false, ), 'json' => array( 'function' => 'json_last_error', 'required' => true, ), 'mbstring' => array( 'function' => 'mb_check_encoding', 'required' => false, ), 'mysqli' => array( 'function' => 'mysqli_connect', 'required' => false, ), 'libsodium' => array( 'constant' => 'SODIUM_LIBRARY_VERSION', 'required' => false, 'php_bundled_version' => '7.2.0', ), 'openssl' => array( 'function' => 'openssl_encrypt', 'required' => false, ), 'pcre' => array( 'function' => 'preg_match', 'required' => false, ), 'mod_xml' => array( 'extension' => 'libxml',Changelog
Introduced in 5.2.0. 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 6.9.7 tag, from
src/wp-admin/includes/class-wp-site-health.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.