wp_get_popular_importers(): array

Return value

array

Importers with metadata for each.

Performance profile

How much work a call to wp_get_popular_importers() 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

Scales with input

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

Instructions

21–142

Executed per call on PHP 8.4, depending on the branch taken. The body compiles to 171.

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()called directly
• httpoutbound HTTP requestwp_remote_get()called directly
• serializeserialisationjson_decode()called directly
• querycontent queryget_user_by()one call below wp_get_popular_importers()
• hookthird-party callbacksapply_filters()one call below wp_get_popular_importers()
• cacheobject cachewp_cache_get()one call below wp_get_popular_importers()
• optionnetwork optionget_site_option()one call below wp_get_popular_importers()

What one call costs · 10 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_get_popular_importers() can have, taken from its control-flow graph on PHP 8.4.

Uses · 12

• get_user_locale()Retrieves the locale of a user.
• wp_get_wp_version()Returns the current WordPress version.
• get_site_transient()Retrieves the value of a site transient.
• add_query_arg()Retrieves a modified URL query string.
• home_url()Retrieves the URL for the current site where the front end is accessible.
• wp_http_supports()Determines if there is an HTTP Transport that can process this request.
• set_url_scheme()Sets the scheme for a URL.
• wp_remote_get()Performs an HTTP request using the GET method and returns its response.
• wp_remote_retrieve_body()Retrieves only the body from the raw response.
• set_site_transient()Sets/updates the value of a site transient.
• translate()Retrieves the translation of $text.
• __()Retrieves the translation of $text.

Source code

View on Trac ↗View on GitHub ↗

138function wp_get_popular_importers() {139	$locale            = get_user_locale();140	$cache_key         = 'popular_importers_' . md5( $locale . wp_get_wp_version() );141	$popular_importers = get_site_transient( $cache_key );142 143	if ( ! $popular_importers ) {144		$url     = add_query_arg(145			array(146				'locale'  => $locale,147				'version' => wp_get_wp_version(),148			),149			'http://api.wordpress.org/core/importers/1.1/'150		);151		$options = array( 'user-agent' => 'WordPress/' . wp_get_wp_version() . '; ' . home_url( '/' ) );152 153		if ( wp_http_supports( array( 'ssl' ) ) ) {154			$url = set_url_scheme( $url, 'https' );155		}156 157		$response          = wp_remote_get( $url, $options );158		$popular_importers = json_decode( wp_remote_retrieve_body( $response ), true );159 160		if ( is_array( $popular_importers ) ) {161			set_site_transient( $cache_key, $popular_importers, 2 * DAY_IN_SECONDS );162		} else {163			$popular_importers = false;164		}165	}166 167	if ( is_array( $popular_importers ) ) {168		// If the data was received as translated, return it as-is.169		if ( $popular_importers['translated'] ) {170			return $popular_importers['importers'];171		}172 173		foreach ( $popular_importers['importers'] as &$importer ) {174			// phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText175			$importer['description'] = translate( $importer['description'] );176			if ( 'WordPress' !== $importer['name'] ) {177				// phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText178				$importer['name'] = translate( $importer['name'] );179			}180		}181		return $popular_importers['importers'];182	}183 184	return array(185		// slug => name, description, plugin slug, and register_importer() slug.186		'blogger'     => array(187			'name'        => __( 'Blogger' ),188			'description' => __( 'Import posts, comments, and users from a Blogger blog.' ),189			'plugin-slug' => 'blogger-importer',190			'importer-id' => 'blogger',191		),192		'wpcat2tag'   => array(193			'name'        => __( 'Categories and Tags Converter' ),194			'description' => __( 'Convert existing categories to tags or tags to categories, selectively.' ),195			'plugin-slug' => 'wpcat2tag-importer',196			'importer-id' => 'wp-cat2tag',197		),198		'livejournal' => array(199			'name'        => __( 'LiveJournal' ),200			'description' => __( 'Import posts from LiveJournal using their API.' ),201			'plugin-slug' => 'livejournal-importer',202			'importer-id' => 'livejournal',203		),204		'movabletype' => array(205			'name'        => __( 'Movable Type and TypePad' ),206			'description' => __( 'Import posts and comments from a Movable Type or TypePad blog.' ),207			'plugin-slug' => 'movabletype-importer',208			'importer-id' => 'mt',209		),210		'rss'         => array(211			'name'        => __( 'RSS' ),212			'description' => __( 'Import posts from an RSS feed.' ),213			'plugin-slug' => 'rss-importer',214			'importer-id' => 'rss',215		),216		'tumblr'      => array(217			'name'        => __( 'Tumblr' ),

Changelog

Introduced in 3.5.0. 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 7.0.4 tag, from src/wp-admin/includes/import.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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