wp_ajax_wp_privacy_export_personal_data()

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_ajax_wp_privacy_export_personal_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

Heavy

Reaches the database via get_post().

Scaling

Constant

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

Instructions

81–235

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 298.

Plugin surface

2 hooks

Third-party callbacks on 'wp_privacy_personal_data_exporters', 'wp_privacy_personal_data_export_page' run inside this call, and their cost is not bounded by anything here.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• hookthird-party callbacksapply_filters()called directly
• querycontent queryget_post()one call below wp_ajax_wp_privacy_export_personal_data()

Further down the call graph this can also reach 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 · 690 distinct outcomes

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

Hooks and filters fired · 2

2 hooks fire while wp_ajax_wp_privacy_export_personal_data() runs, in this order:

1. 1
   apply_filters( wp_privacy_personal_data_exporters )filterline 4988 (+63 into the body)

   Filters the array of exporter callbacks.

2. 2
   apply_filters( wp_privacy_personal_data_export_page )filterline 5101 (+176 into the body)

   Filters a page of personal data exporter data. Used to build the export report.

Uses · 10

• wp_send_json_error()Sends a JSON response back to an Ajax request, indicating failure.
• __()Retrieves the translation of $text.
• current_user_can()Returns whether the current user has the specified capability.
• check_ajax_referer()Verifies the Ajax request to prevent processing requests external of the blog.
• wp_get_user_request()Returns the user request object for the specified request ID.
• is_email()Verifies that an email is valid.
• apply_filters()Calls the callback functions that have been added to a filter hook.
• esc_html()Escaping for HTML blocks.
• is_wp_error()Checks whether the given variable is a WordPress Error.
• wp_send_json_success()Sends a JSON response back to an Ajax request, indicating success.

Source code

View on Trac ↗View on GitHub ↗

4925function wp_ajax_wp_privacy_export_personal_data() {4926 4927	if ( empty( $_POST['id'] ) ) {4928		wp_send_json_error( __( 'Missing request ID.' ) );4929	}4930 4931	$request_id = (int) $_POST['id'];4932 4933	if ( $request_id < 1 ) {4934		wp_send_json_error( __( 'Invalid request ID.' ) );4935	}4936 4937	if ( ! current_user_can( 'export_others_personal_data' ) ) {4938		wp_send_json_error( __( 'Sorry, you are not allowed to perform this action.' ) );4939	}4940 4941	check_ajax_referer( 'wp-privacy-export-personal-data-' . $request_id, 'security' );4942 4943	// Get the request.4944	$request = wp_get_user_request( $request_id );4945 4946	if ( ! $request || 'export_personal_data' !== $request->action_name ) {4947		wp_send_json_error( __( 'Invalid request type.' ) );4948	}4949 4950	$email_address = $request->email;4951	if ( ! is_email( $email_address ) ) {4952		wp_send_json_error( __( 'A valid email address must be given.' ) );4953	}4954 4955	if ( ! isset( $_POST['exporter'] ) ) {4956		wp_send_json_error( __( 'Missing exporter index.' ) );4957	}4958 4959	$exporter_index = (int) $_POST['exporter'];4960 4961	if ( ! isset( $_POST['page'] ) ) {4962		wp_send_json_error( __( 'Missing page index.' ) );4963	}4964 4965	$page = (int) $_POST['page'];4966 4967	$send_as_email = isset( $_POST['sendAsEmail'] ) ? ( 'true' === $_POST['sendAsEmail'] ) : false;4968 4969	/**4970	 * Filters the array of exporter callbacks.4971	 *4972	 * @since 4.9.64973	 *4974	 * @param array $args {4975	 *     An array of callable exporters of personal data. Default empty array.4976	 *4977	 *     @type array ...$0 {4978	 *         Array of personal data exporters.4979	 *4980	 *         @type callable $callback               Callable exporter function that accepts an4981	 *                                                email address and a page number and returns an4982	 *                                                array of name => value pairs of personal data.4983	 *         @type string   $exporter_friendly_name Translated user facing friendly name for the4984	 *                                                exporter.4985	 *     }4986	 * }4987	 */4988	$exporters = apply_filters( 'wp_privacy_personal_data_exporters', array() );4989 4990	if ( ! is_array( $exporters ) ) {4991		wp_send_json_error( __( 'An exporter has improperly used the registration filter.' ) );4992	}4993 4994	// Do we have any registered exporters?4995	if ( 0 < count( $exporters ) ) {4996		if ( $exporter_index < 1 ) {4997			wp_send_json_error( __( 'Exporter index cannot be negative.' ) );4998		}4999 5000		if ( $exporter_index > count( $exporters ) ) {5001			wp_send_json_error( __( 'Exporter index is out of range.' ) );5002		}5003 5004		if ( $page < 1 ) {

Changelog

Introduced in 4.9.6. 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 6.7.7 tag, from src/wp-admin/includes/ajax-actions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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