wppaste
WordPress

get_plugin_data( string $plugin_file, bool $markup = true, bool $translate = true ): array

Since
1.5.0, 5.3.0, 5.8.0, 6.5.0
Source
wp-admin/includes/plugin.php:74
Parses the plugin contents to retrieve plugin's metadata.

Description

All plugin headers must be on their own line. Plugin description must not have any newlines, otherwise only parts of the description will be displayed.
The below is formatted for printing.

/*
Plugin Name: Name of the plugin.
Plugin URI: The home page of the plugin.
Description: Plugin description.
Author: Plugin author's name.
Author URI: Link to the author's website.
Version: Plugin version.
Text Domain: Optional. Unique identifier, should be same as the one used in
 load_plugin_textdomain().
Domain Path: Optional. Only useful if the translations are located in a
 folder above the plugin's base path. For example, if .mo files are
 located in the locale folder then Domain Path will be "/locale/" and
 must have the first slash. Defaults to the base folder the plugin is
 located in.
Network: Optional. Specify "Network: true" to require that a plugin is activated
 across all sites in an installation. This will prevent a plugin from being
 activated on a single site when Multisite is enabled.
Requires at least: Optional. Specify the minimum required WordPress version.
Requires PHP: Optional. Specify the minimum required PHP version.
* / # Remove the space to close comment.

The first 8 KB of the file will be pulled in and if the plugin data is not within that first 8 KB, then the plugin author should correct their plugin and move the plugin data headers to the top.

The plugin file is assumed to have permissions to allow for scripts to read the file. This is not checked however and the file is only opened for reading.

Compatibility

WordPress
since 6.5.0
PHP
7.4–8.6-dev
  • 6.7.7
  • 6.8.8
  • 6.9.7
  • 7.0.4
  • 7.1.0

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

Parameters

$plugin_filestring
Absolute path to the main plugin file.
$markupbooloptional
If the returned data should have HTML markup applied.
Default true.Default: true
$translatebooloptional
If the returned data should be translated. Default true.Default: true

Return value

array
Plugin data. Values will be empty if not supplied by the plugin.
  • $Namestring

    Name of the plugin. Should be unique.
  • $PluginURIstring

    Plugin URI.
  • $Versionstring

    Plugin version.
  • $Descriptionstring

    Plugin description.
  • $Authorstring

    Plugin author's name.
  • $AuthorURIstring

    Plugin author's website address (if set).
  • $TextDomainstring

    Plugin textdomain.
  • $DomainPathstring

    Plugin's relative directory path to .mo files.
  • $Networkbool

    Whether the plugin can only be activated network-wide.
  • $RequiresWPstring

    Minimum required version of WordPress.
  • $RequiresPHPstring

    Minimum required version of PHP.
  • $UpdateURIstring

    ID of the plugin for update purposes, should be a URI.
  • $RequiresPluginsstring

    Comma separated list of dot org plugin slugs.
  • $Titlestring

    Title of the plugin and link to the plugin's site (if set).
  • $AuthorNamestring

    Plugin author's name.

Performance profile

How much work a call to get_plugin_data() 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
Trivial

Touches nothing outside its own arguments.

Scaling
Constant

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

Instructions
31–60

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 67.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
12

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

What it touches

  • hookthird-party callbacksapply_filters()one call below get_plugin_data()

Further down the call graph this can also reach query, option, cache, serialize 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 · 8 distinct outcomes

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

WhenInstructionsCalls it makes
$plugin_data31–33get_file_data(), strtolower()
$plugin_data31–34get_file_data(), strtolower(), _get_plugin_data_markup_translate()
!$plugin_data37–43get_file_data(), strtolower(), plugin_basename()
!$plugin_data37–44get_file_data(), strtolower(), plugin_basename(), _get_plugin_data_markup_translate()
always49get_file_data(), __(), sprintf(), _deprecated_argument(), strtolower()
always49–50get_file_data(), __(), sprintf(), _deprecated_argument(), strtolower(), _get_plugin_data_markup_translate()
always55–59get_file_data(), __(), sprintf(), _deprecated_argument(), strtolower(), plugin_basename()
always55–60get_file_data(), __(), sprintf(), _deprecated_argument(), strtolower(), plugin_basename(), _get_plugin_data_markup_translate()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev6731–607
8.56731–607
8.46731–6076 fewer instructions than PHP 8.3
8.37331–667
8.27331–667
8.17331–667
7.47331–667

An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.

Uses · 6

Used by · 12

Source code

function get_plugin_data( $plugin_file, $markup = true, $translate = true ) { 	$default_headers = array(		'Name'            => 'Plugin Name',		'PluginURI'       => 'Plugin URI',		'Version'         => 'Version',		'Description'     => 'Description',		'Author'          => 'Author',		'AuthorURI'       => 'Author URI',		'TextDomain'      => 'Text Domain',		'DomainPath'      => 'Domain Path',		'Network'         => 'Network',		'RequiresWP'      => 'Requires at least',		'RequiresPHP'     => 'Requires PHP',		'UpdateURI'       => 'Update URI',		'RequiresPlugins' => 'Requires Plugins',		// Site Wide Only is deprecated in favor of Network.		'_sitewide'       => 'Site Wide Only',	); 	$plugin_data = get_file_data( $plugin_file, $default_headers, 'plugin' ); 	// Site Wide Only is the old header for Network.	if ( ! $plugin_data['Network'] && $plugin_data['_sitewide'] ) {		/* translators: 1: Site Wide Only: true, 2: Network: true */		_deprecated_argument( __FUNCTION__, '3.0.0', sprintf( __( 'The %1$s plugin header is deprecated. Use %2$s instead.' ), '<code>Site Wide Only: true</code>', '<code>Network: true</code>' ) );		$plugin_data['Network'] = $plugin_data['_sitewide'];	}	$plugin_data['Network'] = ( 'true' === strtolower( $plugin_data['Network'] ) );	unset( $plugin_data['_sitewide'] ); 	// If no text domain is defined fall back to the plugin slug.	if ( ! $plugin_data['TextDomain'] ) {		$plugin_slug = dirname( plugin_basename( $plugin_file ) );		if ( '.' !== $plugin_slug && ! str_contains( $plugin_slug, '/' ) ) {			$plugin_data['TextDomain'] = $plugin_slug;		}	} 	if ( $markup || $translate ) {		$plugin_data = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup, $translate );	} else {		$plugin_data['Title']      = $plugin_data['Name'];		$plugin_data['AuthorName'] = $plugin_data['Author'];	} 	return $plugin_data;}

Changelog

Introduced in 1.5.0. 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.

6.5.0
Added support for Requires Plugins header.from the docblock
5.8.0
Added support for Update URI header.from the docblock
5.3.0
Added support for Requires at least and Requires PHP headers.from the docblock
1.5.0
Introduced.from the docblock

About this page

Parsed data
Generated from the wordpress-develop 6.9.7 tag, from src/wp-admin/includes/plugin.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
Something wrong on this page? Report it and it gets fixed in the next regeneration.