xmlrpc_getpostcategory( string $content ): string[]|string
- Since
- 0.71
- Source
wp-includes/functions.php:801
Description
If the category element is not found in the XML, the default post category from the $post_default_category global will be used instead.
The return type will then be a string.
If the category element is found, the return type will be an array.
Compatibility
- WordPress
- since 0.71
- 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
$contentstring- XML-RPC XML Request content.
Return value
string[]|string- An array of category names or default category name.
Performance profile
How much work a call to xmlrpc_getpostcategory() 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
- Trivial
- Scaling
- Constant
- Instructions
- 10–16
- Plugin surface
- None
- Called by
- 2
Touches nothing outside its own arguments.
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 18.
Nothing here hands control to plugin code.
2 places in core call this, so the cost is paid more often than your own code shows.
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 xmlrpc_getpostcategory() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!preg_match() | 10 | preg_match() |
preg_match() | 16 | preg_match(), explode() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 18 | 10–16 | 1 | |
| 8.5 | 18 | 10–16 | 1 | |
| 8.4 | 18 | 10–16 | 1 | 4 fewer instructions than PHP 8.3 |
| 8.3 | 22 | 10–20 | 1 | |
| 8.2 | 22 | 10–20 | 1 | |
| 8.1 | 22 | 10–20 | 1 | |
| 7.4 | 22 | 10–20 | 1 |
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.
Used by · 2
- wp_xmlrpc_server::blogger_editPost()Edits a post.
- wp_xmlrpc_server::blogger_newPost()Creates a new post.
Source code
function xmlrpc_getpostcategory( $content ) { global $post_default_category; if ( preg_match( '/<category>(.+?)<\/category>/is', $content, $matchcat ) ) { $post_category = trim( $matchcat[1], ',' ); $post_category = explode( ',', $post_category ); } else { $post_category = $post_default_category; } return $post_category;}Changelog
Introduced in 0.71. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
string|array to string[]|string.verified against sourceAbout this page
- Parsed data
- Generated from the wordpress-develop 7.0.4 tag, from
src/wp-includes/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
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