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 5000 (+63 into the body)

   Filters the array of exporter callbacks.

2. 2
   apply_filters( wp_privacy_personal_data_export_page )filterline 5113 (+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 ↗

4937function wp_ajax_wp_privacy_export_personal_data() {4938 4939	if ( empty( $_POST['id'] ) ) {4940		wp_send_json_error( __( 'Missing request ID.' ) );4941	}4942 4943	$request_id = (int) $_POST['id'];4944 4945	if ( $request_id < 1 ) {4946		wp_send_json_error( __( 'Invalid request ID.' ) );4947	}4948 4949	if ( ! current_user_can( 'export_others_personal_data' ) ) {4950		wp_send_json_error( __( 'Sorry, you are not allowed to perform this action.' ) );4951	}4952 4953	check_ajax_referer( 'wp-privacy-export-personal-data-' . $request_id, 'security' );4954 4955	// Get the request.4956	$request = wp_get_user_request( $request_id );4957 4958	if ( ! $request || 'export_personal_data' !== $request->action_name ) {4959		wp_send_json_error( __( 'Invalid request type.' ) );4960	}4961 4962	$email_address = $request->email;4963	if ( ! is_email( $email_address ) ) {4964		wp_send_json_error( __( 'A valid email address must be given.' ) );4965	}4966 4967	if ( ! isset( $_POST['exporter'] ) ) {4968		wp_send_json_error( __( 'Missing exporter index.' ) );4969	}4970 4971	$exporter_index = (int) $_POST['exporter'];4972 4973	if ( ! isset( $_POST['page'] ) ) {4974		wp_send_json_error( __( 'Missing page index.' ) );4975	}4976 4977	$page = (int) $_POST['page'];4978 4979	$send_as_email = isset( $_POST['sendAsEmail'] ) ? ( 'true' === $_POST['sendAsEmail'] ) : false;4980 4981	/**4982	 * Filters the array of exporter callbacks.4983	 *4984	 * @since 4.9.64985	 *4986	 * @param array $args {4987	 *     An array of callable exporters of personal data. Default empty array.4988	 *4989	 *     @type array ...$0 {4990	 *         Array of personal data exporters.4991	 *4992	 *         @type callable $callback               Callable exporter function that accepts an4993	 *                                                email address and a page number and returns an4994	 *                                                array of name => value pairs of personal data.4995	 *         @type string   $exporter_friendly_name Translated user facing friendly name for the4996	 *                                                exporter.4997	 *     }4998	 * }4999	 */5000	$exporters = apply_filters( 'wp_privacy_personal_data_exporters', array() );5001 5002	if ( ! is_array( $exporters ) ) {5003		wp_send_json_error( __( 'An exporter has improperly used the registration filter.' ) );5004	}5005 5006	// Do we have any registered exporters?5007	if ( 0 < count( $exporters ) ) {5008		if ( $exporter_index < 1 ) {5009			wp_send_json_error( __( 'Exporter index cannot be negative.' ) );5010		}5011 5012		if ( $exporter_index > count( $exporters ) ) {5013			wp_send_json_error( __( 'Exporter index is out of range.' ) );5014		}5015 5016		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 7.0.4 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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