wp_dashboard_php_nag()

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Performance profile

How much work a call to wp_dashboard_php_nag() 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

Expensive

Reaches an outbound HTTP request via wp_remote_get().

Scaling

Constant

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

Instructions

5–64

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 93.

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

• transienttransientget_site_transient()one call below wp_dashboard_php_nag()
• httpoutbound HTTP requestwp_remote_get()one call below wp_dashboard_php_nag()
• hookthird-party callbacksapply_filters()one call below wp_dashboard_php_nag()

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 · 3 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_dashboard_php_nag() can have, taken from its control-flow graph on PHP 8.5.

Uses · 7

• wp_check_php_version()Checks if the user needs to update PHP.
• __()Retrieves the translation of $text.
• _e()Displays translated text.
• esc_url()Checks and cleans a URL.
• wp_get_update_php_url()Gets the URL to learn more about updating the PHP version the site is running on.
• wp_update_php_annotation()Prints the default annotation for the web host altering the "Update PHP" page URL.
• wp_direct_php_update_button()Displays a button directly linking to a PHP update process.

Source code

View on Trac ↗View on GitHub ↗

1880function wp_dashboard_php_nag() {1881	$response = wp_check_php_version();1882 1883	if ( ! $response ) {1884		return;1885	}1886 1887	if ( isset( $response['is_secure'] ) && ! $response['is_secure'] ) {1888		// The `is_secure` array key name doesn't actually imply this is a secure version of PHP. It only means it receives security updates.1889 1890		if ( $response['is_lower_than_future_minimum'] ) {1891			$message = sprintf(1892				/* translators: %s: The server PHP version. */1893				__( 'Your site is running on an outdated version of PHP (%s), which does not receive security updates and soon will not be supported by WordPress. Ensure that PHP is updated on your server as soon as possible. Otherwise you will not be able to upgrade WordPress.' ),1894				PHP_VERSION1895			);1896		} else {1897			$message = sprintf(1898				/* translators: %s: The server PHP version. */1899				__( 'Your site is running on an outdated version of PHP (%s), which does not receive security updates. It should be updated.' ),1900				PHP_VERSION1901			);1902		}1903	} elseif ( $response['is_lower_than_future_minimum'] ) {1904		$message = sprintf(1905			/* translators: %s: The server PHP version. */1906			__( 'Your site is running on an outdated version of PHP (%s), which soon will not be supported by WordPress. Ensure that PHP is updated on your server as soon as possible. Otherwise you will not be able to upgrade WordPress.' ),1907			PHP_VERSION1908		);1909	} else {1910		$message = sprintf(1911			/* translators: %s: The server PHP version. */1912			__( 'Your site is running on an outdated version of PHP (%s), which should be updated.' ),1913			PHP_VERSION1914		);1915	}1916	?>1917	<p class="bigger-bolder-text"><?php echo $message; ?></p>1918 1919	<p><?php _e( 'What is PHP and how does it affect my site?' ); ?></p>1920	<p>1921		<?php _e( 'PHP is one of the programming languages used to build WordPress. Newer versions of PHP receive regular security updates and may increase your site&#8217;s performance.' ); ?>1922		<?php1923		if ( ! empty( $response['recommended_version'] ) ) {1924			printf(1925				/* translators: %s: The minimum recommended PHP version. */1926				__( 'The minimum recommended version of PHP is %s.' ),1927				$response['recommended_version']1928			);1929		}1930		?>1931	</p>1932 1933	<p class="button-container">1934		<?php1935		printf(1936			'<a class="button button-primary" href="%1$s" target="_blank">%2$s<span class="screen-reader-text"> %3$s</span><span aria-hidden="true" class="dashicons dashicons-external"></span></a>',1937			esc_url( wp_get_update_php_url() ),1938			__( 'Learn more about updating PHP' ),1939			/* translators: Hidden accessibility text. */1940			__( '(opens in a new tab)' )1941		);1942		?>1943	</p>1944	<?php1945 1946	wp_update_php_annotation();1947	wp_direct_php_update_button();1948}

Changelog

Introduced in 5.1.0. 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/dashboard.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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