_get_comment_reply_id( int|WP_Post|null $post = null ): int
- Since
- 6.2.0
- Source
wp-includes/comment-template.php:2165
Compatibility
- WordPress
- since 6.2.0
- 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
$postint|WP_Post|nulloptional- The post the comment is being displayed for.
Defaults to the current global post.Default:null
Return value
int- Comment's reply to ID.
Performance profile
How much work a call to _get_comment_reply_id() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Heavy
- Scaling
- Constant
- Instructions
- 7–32
- Plugin surface
- None
- Called by
- 3
Reaches the database via get_post().
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 34.
Nothing here hands control to plugin code.
3 places in core call this, so the cost is paid more often than your own code shows.
What it touches
- querycontent query
get_post()called directly - hookthird-party callbacks
apply_filters()one call below _get_comment_reply_id()
Further down the call graph this can also reach option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost _get_comment_reply_id() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 7–14 | get_post() |
isset($value) | 23–32 | get_post(), get_comment() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 34 | 7–32 | 6 | |
| 8.5 | 34 | 7–32 | 6 | |
| 8.4 | 34 | 7–32 | 6 | 2 fewer instructions than PHP 8.3 |
| 8.3 | 36 | 7–34 | 6 | |
| 8.2 | 36 | 7–34 | 6 | |
| 8.1 | 36 | 7–34 | 6 | |
| 7.4 | 36 | 7–34 | 6 |
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 · 2
- get_post()Retrieves post data given a post ID or post object.
- get_comment()Retrieves comment data given a comment ID or comment object.
Used by · 3
- comment_form_title()Displays text based on comment reply status.
- get_cancel_comment_reply_link()Retrieves HTML content for cancel comment reply link.
- get_comment_id_fields()Retrieves hidden input HTML for replying to comments.
Source code
function _get_comment_reply_id( $post = null ) { $post = get_post( $post ); if ( ! $post || ! isset( $_GET['replytocom'] ) || ! is_numeric( $_GET['replytocom'] ) ) { return 0; } $reply_to_id = (int) $_GET['replytocom']; /* * Validate the comment. * Bail out if it does not exist, is not approved, or its * `comment_post_ID` does not match the given post ID. */ $comment = get_comment( $reply_to_id ); if ( ! $comment instanceof WP_Comment || 0 === (int) $comment->comment_approved || $post->ID !== (int) $comment->comment_post_ID ) { return 0; } return $reply_to_id;}Changelog
Introduced in 6.2.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$post retyped from int|WP_Post to int|WP_Post|null.verified against sourceAbout this page
- Parsed data
- Generated from the wordpress-develop 7.1.0 tag, from
src/wp-includes/comment-template.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.