WP_Debug_Data::get_wp_server(): array

Compatibility

Present in every tracked release (6.7.10 to 7.1.3), and compiles on PHP 7.4 through 8.6-dev.

Return value

array

Performance profile

How much work a call to WP_Debug_Data::get_wp_server() 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 or writes the filesystem via is_file().

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

265–321

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 374.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

• filesystemfilesystem accessis_file()called directly
• hookthird-party callbacksapply_filters()one call below WP_Debug_Data::get_wp_server()

Further down the call graph this can also reach option, cache, serialize, query 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 · 32 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Debug_Data::get_wp_server() 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 · 6

• __()Retrieves the translation of $text.
• got_url_rewrite()Returns whether the server supports URL rewriting.
• wp_date()Retrieves the date, in localized format.
• WP_Site_Health::get_instance()Returns an instance of the WP_Site_Health class, or create one if none exist yet.
• DateTime::__construct()
• DateTimeZone::__construct()

Used by · 1

• WP_Debug_Data::debug_data()Static function for generating site debug data when required.

Source code

View on Trac ↗View on GitHub ↗

345	private static function get_wp_server(): array {346		// Populate the server debug fields.347		if ( function_exists( 'php_uname' ) ) {348			$server_architecture = sprintf( '%s %s %s', php_uname( 's' ), php_uname( 'r' ), php_uname( 'm' ) );349		} else {350			$server_architecture = 'unknown';351		}352 353		$php_version_debug = PHP_VERSION;354		// Whether PHP supports 64-bit.355		$php64bit = ( PHP_INT_SIZE * 8 === 64 );356 357		$php_version = sprintf(358			'%s %s',359			$php_version_debug,360			( $php64bit ? __( '(Supports 64bit values)' ) : __( '(Does not support 64bit values)' ) )361		);362 363		if ( $php64bit ) {364			$php_version_debug .= ' 64bit';365		}366 367		$fields = array();368 369		$fields['server_architecture'] = array(370			'label' => __( 'Server architecture' ),371			'value' => ( 'unknown' !== $server_architecture ? $server_architecture : __( 'Unable to determine server architecture' ) ),372			'debug' => $server_architecture,373		);374		$fields['httpd_software']      = array(375			'label' => __( 'Web server' ),376			'value' => ( isset( $_SERVER['SERVER_SOFTWARE'] ) ? $_SERVER['SERVER_SOFTWARE'] : __( 'Unable to determine what web server software is used' ) ),377			'debug' => ( isset( $_SERVER['SERVER_SOFTWARE'] ) ? $_SERVER['SERVER_SOFTWARE'] : 'unknown' ),378		);379		$fields['php_version']         = array(380			'label' => __( 'PHP version' ),381			'value' => $php_version,382			'debug' => $php_version_debug,383		);384		$fields['php_sapi']            = array(385			'label' => __( 'PHP SAPI' ),386			'value' => PHP_SAPI,387			'debug' => PHP_SAPI,388		);389 390		// Some servers disable `ini_set()` and `ini_get()`, we check this before trying to get configuration values.391		if ( ! function_exists( 'ini_get' ) ) {392			$fields['ini_get'] = array(393				'label' => __( 'Server settings' ),394				'value' => sprintf(395				/* translators: %s: ini_get() */396					__( 'Unable to determine some settings, as the %s function has been disabled.' ),397					'ini_get()'398				),399				'debug' => 'ini_get() is disabled',400			);401		} else {402			$fields['max_input_variables'] = array(403				'label' => __( 'PHP max input variables' ),404				'value' => ini_get( 'max_input_vars' ),405			);406			$fields['time_limit']          = array(407				'label' => __( 'PHP time limit' ),408				'value' => ini_get( 'max_execution_time' ),409			);410 411			if ( WP_Site_Health::get_instance()->php_memory_limit !== ini_get( 'memory_limit' ) ) {412				$fields['memory_limit']       = array(413					'label' => __( 'PHP memory limit' ),414					'value' => WP_Site_Health::get_instance()->php_memory_limit,415				);416				$fields['admin_memory_limit'] = array(417					'label' => __( 'PHP memory limit (only for admin screens)' ),418					'value' => ini_get( 'memory_limit' ),419				);420			} else {421				$fields['memory_limit'] = array(422					'label' => __( 'PHP memory limit' ),423					'value' => ini_get( 'memory_limit' ),424				);

Changelog

Introduced in 6.7.0. One change between 6.7.10 and 7.1.3.

1. 6.7.10
2. 6.8.11
3. 6.9.10
4. 7.0.7
5. 7.1.3

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.8.11 tag, from src/wp-admin/includes/class-wp-debug-data.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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