WP_Debug_Data::get_wp_server(): array<string,

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<string,

string|array> The server-related debug data.

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

287–481

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 589.

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()
• optionoption read or writeget_option()one call below WP_Debug_Data::get_wp_server()

Further down the call graph this can also reach 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 · 24 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 · 10

• __()Retrieves the translation of $text.
• wp_unslash()Removes slashes from a string or recursively removes slashes from strings within an array.
• size_format()Converts a number of bytes to the largest unit the bytes will fit into.
• number_format_i18n()Converts float number to format based on the locale.
• got_url_rewrite()Returns whether the server supports URL rewriting.
• get_home_path()Gets the absolute filesystem path to the root of the WordPress installation.
• 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' => ! empty( $_SERVER['SERVER_SOFTWARE'] ) ? wp_unslash( $_SERVER['SERVER_SOFTWARE'] ) : __( 'Unable to determine what web server software is used' ),377			'debug' => ! empty( $_SERVER['SERVER_SOFTWARE'] ) ? wp_unslash( $_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		$fields['max_input_variables'] = array(391			'label' => __( 'PHP max input variables' ),392			'value' => ini_get( 'max_input_vars' ),393		);394		$fields['time_limit']          = array(395			'label' => __( 'PHP time limit' ),396			'value' => ini_get( 'max_execution_time' ),397		);398 399		if ( WP_Site_Health::get_instance()->php_memory_limit !== ini_get( 'memory_limit' ) ) {400			$fields['memory_limit']       = array(401				'label' => __( 'PHP memory limit' ),402				'value' => WP_Site_Health::get_instance()->php_memory_limit,403			);404			$fields['admin_memory_limit'] = array(405				'label' => __( 'PHP memory limit (only for admin screens)' ),406				'value' => ini_get( 'memory_limit' ),407			);408		} else {409			$fields['memory_limit'] = array(410				'label' => __( 'PHP memory limit' ),411				'value' => ini_get( 'memory_limit' ),412			);413		}414 415		$fields['max_input_time']      = array(416			'label' => __( 'Max input time' ),417			'value' => ini_get( 'max_input_time' ),418		);419		$fields['upload_max_filesize'] = array(420			'label' => __( 'Upload max filesize' ),421			'value' => ini_get( 'upload_max_filesize' ),422		);423		$fields['php_post_max_size']   = array(424			'label' => __( 'PHP post max size' ),

Changelog

Introduced in 6.7.0. One change between 6.7.7 and 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-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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