WP_REST_Block_Renderer_Controller::get_item_permissions_check( WP_REST_Request $request ): true|WP_Error
- Since
- 5.0.0
- Source
wp-includes/rest-api/endpoints/class-wp-rest-block-renderer-controller.php:111
Compatibility
- WordPress
- since 5.0.0
- 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
$requestWP_REST_Request- Request.
Return value
true|WP_Error- True if the request has read access, WP_Error object otherwise.
Performance profile
How much work a call to WP_REST_Block_Renderer_Controller::get_item_permissions_check() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Heavy
- Scaling
- Constant
- Instructions
- 13–34
- Plugin surface
- None
- Called by
- 0
Reaches the database via get_post().
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 52.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- querycontent query
get_post()called directly
Further down the call graph this can also reach hook, option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 5 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_REST_Block_Renderer_Controller::get_item_permissions_check() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!$post_id && current_user_can() | 13–15 | current_user_can() |
$post_id && current_user_can() | 21–23 | get_post(), current_user_can() |
!$post_id && !current_user_can() | 24–26 | current_user_can(), __(), rest_authorization_required_code(), status() |
$post_id | 25–27 | get_post(), __(), rest_authorization_required_code(), status() |
$post_id && !current_user_can() | 32–34 | get_post(), current_user_can(), __(), rest_authorization_required_code(), status() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 52 | 13–34 | 5 | |
| 8.5 | 52 | 13–34 | 5 | |
| 8.4 | 52 | 13–34 | 5 | |
| 8.3 | 52 | 13–34 | 5 | |
| 8.2 | 52 | 13–34 | 5 | |
| 8.1 | 52 | 13–34 | 5 | 1 fewer instruction than PHP 7.4 |
| 7.4 | 53 | 13–35 | 5 |
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 · 5
- get_post()Retrieves post data given a post ID or post object.
- current_user_can()Returns whether the current user has the specified capability.
- __()Retrieves the translation of $text.
- rest_authorization_required_code()Returns a contextual HTTP error code for authorization failure.
- WP_Error::__construct()Initializes the error.
Source code
public function get_item_permissions_check( $request ) { global $post; $post_id = isset( $request['post_id'] ) ? (int) $request['post_id'] : 0; if ( $post_id > 0 ) { $post = get_post( $post_id ); if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) { return new WP_Error( 'block_cannot_read', __( 'Sorry, you are not allowed to read blocks of this post.' ), array( 'status' => rest_authorization_required_code(), ) ); } } else { if ( ! current_user_can( 'edit_posts' ) ) { return new WP_Error( 'block_cannot_read', __( 'Sorry, you are not allowed to read blocks as this user.' ), array( 'status' => rest_authorization_required_code(), ) ); } } return true; }Changelog
Introduced in 5.0.0. Unchanged from 6.7.7 through 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-includes/rest-api/endpoints/class-wp-rest-block-renderer-controller.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.