redirect_post( int $post_id = '' )
- Since
- 2.7.0
- Source
wp-admin/includes/post.php:2178
Compatibility
- WordPress
- since 2.7.0
- 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
$post_idintoptional- Post ID.Default:
''
Performance profile
How much work a call to redirect_post() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Heavy
- Scaling
- Constant
- Instructions
- 33–47
- Plugin surface
- 1 hook
- Called by
- 0
Reaches the database via get_post().
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 110.
Third-party callbacks on 'redirect_post_location' run inside this call, and their cost is not bounded by anything here.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()called directly - querycontent query
get_post()one call below redirect_post()
Further down the call graph this can also reach option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 3 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost redirect_post() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
isset($value) | 33–47 | get_post_status(), get_edit_post_link(), add_query_arg(), apply_filters(), wp_redirect(), exit() |
!isset($value) | 34–40 | get_edit_post_link(), add_query_arg(), apply_filters(), wp_redirect(), exit() |
| always | 41–47 | wp_get_referer(), add_query_arg(), explode(), apply_filters(), wp_redirect(), exit() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 110 | 33–47 | 11 | |
| 8.5 | 110 | 33–47 | 11 | |
| 8.4 | 110 | 33–47 | 11 | 2 more instructions than PHP 8.3 |
| 8.3 | 108 | 31–45 | 11 | |
| 8.2 | 108 | 31–45 | 11 | 1 more instruction than PHP 8.1 |
| 8.1 | 107 | 31–45 | 11 | |
| 7.4 | 107 | 31–45 | 11 |
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.
Hooks and filters fired · 1
One hook fires while redirect_post() runs, in this order:
- apply_filters( redirect_post_location )filterline 2218 (+40 into the body)
Filters the post redirect destination URL.
Uses · 6
- get_post_status()Retrieves the post status based on the post ID.
- add_query_arg()Retrieves a modified URL query string.
- get_edit_post_link()Retrieves the edit post link for post.
- wp_get_referer()Retrieves referer from '_wp_http_referer' or HTTP referer.
- wp_redirect()Redirects to another page.
- apply_filters()Calls the callback functions that have been added to a filter hook.
Source code
function redirect_post( $post_id = '' ) { if ( isset( $_POST['save'] ) || isset( $_POST['publish'] ) ) { $status = get_post_status( $post_id ); switch ( $status ) { case 'pending': $message = 8; break; case 'future': $message = 9; break; case 'draft': $message = 10; break; default: $message = isset( $_POST['publish'] ) ? 6 : 1; break; } $location = add_query_arg( 'message', $message, get_edit_post_link( $post_id, 'url' ) ); } elseif ( isset( $_POST['addmeta'] ) && $_POST['addmeta'] ) { $location = add_query_arg( 'message', 2, wp_get_referer() ); $location = explode( '#', $location ); $location = $location[0] . '#postcustom'; } elseif ( isset( $_POST['deletemeta'] ) && $_POST['deletemeta'] ) { $location = add_query_arg( 'message', 3, wp_get_referer() ); $location = explode( '#', $location ); $location = $location[0] . '#postcustom'; } else { $location = add_query_arg( 'message', 4, get_edit_post_link( $post_id, 'url' ) ); } /** * Filters the post redirect destination URL. * * @since 2.9.0 * * @param string $location The destination URL. * @param int $post_id The post ID. */ wp_redirect( apply_filters( 'redirect_post_location', $location, $post_id ) ); exit;}Changelog
Introduced in 2.7.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
none to never.verified against sourceAbout this page
- Parsed data
- Generated from the wordpress-develop 6.7.7 tag, from
src/wp-admin/includes/post.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.