WP_Site_Health::get_test_theme_version(): array

Description

Compatibility

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

The test results.

Performance profile

How much work a call to WP_Site_Health::get_test_theme_version() 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

Heavy

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

Scaling

Scales with input

The body loops, so the work grows with how much data it finds.

Instructions

84–172

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 311.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• hookthird-party callbacksapply_filters()one call below WP_Site_Health::get_test_theme_version()
• transienttransientget_site_transient()one call below WP_Site_Health::get_test_theme_version()

Further down the call graph this can also reach cache, option, serialize and query. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 72 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_theme_version() can have, taken from its control-flow graph on PHP 8.5.

This body has more branch combinations than are worth enumerating, so the table covers the outcomes found first rather than every one that exists.

Uses · 10

• __()Retrieves the translation of $text.
• esc_url()Checks and cleans a URL.
• admin_url()Retrieves the URL to the admin area for the current site.
• get_theme_updates()Retrieves themes with updates available.
• wp_get_themes()Returns an array of WP_Theme objects based on the arguments.
• wp_get_theme()Gets a WP_Theme object for a theme.
• is_child_theme()Whether a child theme is in use.
• _n()Translates and retrieves the singular or plural form based on the supplied number.
• is_multisite()Determines whether Multisite is enabled.
• WP_Theme::get_core_default_theme()Determines the latest WordPress default theme that is installed.

Source code

View on Trac ↗View on GitHub ↗

499	public function get_test_theme_version() {500		$result = array(501			'label'       => __( 'Your themes are all up to date' ),502			'status'      => 'good',503			'badge'       => array(504				'label' => __( 'Security' ),505				'color' => 'blue',506			),507			'description' => sprintf(508				'<p>%s</p>',509				__( 'Themes add your site&#8217;s look and feel. It&#8217;s important to keep them up to date, to stay consistent with your brand and keep your site secure.' )510			),511			'actions'     => sprintf(512				'<p><a href="%s">%s</a></p>',513				esc_url( admin_url( 'themes.php' ) ),514				__( 'Manage your themes' )515			),516			'test'        => 'theme_version',517		);518 519		$theme_updates = get_theme_updates();520 521		$themes_total        = 0;522		$themes_need_updates = 0;523		$themes_inactive     = 0;524 525		// This value is changed during processing to determine how many themes are considered a reasonable amount.526		$allowed_theme_count = 1;527 528		$has_default_theme   = false;529		$has_unused_themes   = false;530		$show_unused_themes  = true;531		$using_default_theme = false;532 533		// Populate a list of all themes available in the install.534		$all_themes   = wp_get_themes();535		$active_theme = wp_get_theme();536 537		// If WP_DEFAULT_THEME doesn't exist, fall back to the latest core default theme.538		$default_theme = wp_get_theme( WP_DEFAULT_THEME );539		if ( ! $default_theme->exists() ) {540			$default_theme = WP_Theme::get_core_default_theme();541		}542 543		if ( $default_theme ) {544			$has_default_theme = true;545 546			if (547				$active_theme->get_stylesheet() === $default_theme->get_stylesheet()548			||549				is_child_theme() && $active_theme->get_template() === $default_theme->get_template()550			) {551				$using_default_theme = true;552			}553		}554 555		foreach ( $all_themes as $theme_slug => $theme ) {556			++$themes_total;557 558			if ( array_key_exists( $theme_slug, $theme_updates ) ) {559				++$themes_need_updates;560			}561		}562 563		// If this is a child theme, increase the allowed theme count by one, to account for the parent.564		if ( is_child_theme() ) {565			++$allowed_theme_count;566		}567 568		// If there's a default theme installed and not in use, we count that as allowed as well.569		if ( $has_default_theme && ! $using_default_theme ) {570			++$allowed_theme_count;571		}572 573		if ( $themes_total > $allowed_theme_count ) {574			$has_unused_themes = true;575			$themes_inactive   = ( $themes_total - $allowed_theme_count );576		}577 578		// Check if any themes need to be updated.

Changelog

Introduced in 5.2.0. 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 7.1.0 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

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