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WordPress

wp_xmlrpc_server::_insert_post( WP_User $user, array|IXR_Error $content_struct ): IXR_Error|string

Since
3.4.0
Source
wp-includes/class-wp-xmlrpc-server.php:1425
Helper method for wp_newPost() and wp_editPost(), containing shared logic.

Compatibility

WordPress
since 3.4.0
PHP
7.4–8.6-dev
  • 6.7.10
  • 6.8.11
  • 6.9.10
  • 7.0.7
  • 7.1.3

Present in every tracked release (6.7.10 to 7.1.3), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$userWP_User
The post author if post_author isn't set in $content_struct.
$content_structarray|IXR_Error
Post data to insert.

Return value

IXR_Error|string

Performance profile

How much work a call to wp_xmlrpc_server::_insert_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

Reaches the database via get_post().

Scaling
Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions
3

Executed per call on PHP 8.5. The body compiles to 676.

Plugin surface
2 hooks

Third-party callbacks on 'xmlrpc_allow_post_type_writes', 'xmlrpc_wp_insert_post_data' run inside this call, and their cost is not bounded by anything here.

Called by
2

2 places in core call this, so the cost is paid more often than your own code shows.

What it touches

  • hookthird-party callbacksapply_filters()called directly
  • querycontent queryget_post()called directly
  • optionoption read or writeget_option()one call below wp_xmlrpc_server::_insert_post()

Further down the call graph this can also reach 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 · 1 distinct outcome

One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_xmlrpc_server::_insert_post() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
always3none

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev6743702 fewer instructions than PHP 8.5
8.5676370
8.46763703 fewer instructions than PHP 8.3
8.3679370
8.26793701 more instruction than PHP 8.1
8.16783702 more instructions than PHP 7.4
7.467648–20570

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 · 2

2 hooks fire while wp_xmlrpc_server::_insert_post() runs, in this order:

  1. apply_filters( xmlrpc_allow_post_type_writes )filterline 1478 (+53 into the body)

    Filters whether a post type accepts writes via XML-RPC.

  2. apply_filters( xmlrpc_wp_insert_post_data )filterline 1723 (+298 into the body)

    Filters post data array to be inserted via XML-RPC.

Uses · 28

Show all 28

Used by · 2

Source code

	protected function _insert_post( $user, $content_struct ) {		$defaults = array(			'post_status'    => 'draft',			'post_type'      => 'post',			'post_author'    => 0,			'post_password'  => '',			'post_excerpt'   => '',			'post_content'   => '',			'post_title'     => '',			'post_date'      => '',			'post_date_gmt'  => '',			'post_format'    => null,			'post_name'      => null,			'post_thumbnail' => null,			'post_parent'    => 0,			'ping_status'    => '',			'comment_status' => '',			'custom_fields'  => null,			'terms_names'    => null,			'terms'          => null,			'sticky'         => null,			'enclosure'      => null,			'ID'             => null,		); 		$post_data = wp_parse_args( array_intersect_key( $content_struct, $defaults ), $defaults ); 		$post_type = get_post_type_object( $post_data['post_type'] );		if ( ! $post_type ) {			return new IXR_Error( 403, __( 'Invalid post type.' ) );		} 		// Reject writes to internal-only builtin post types (e.g. customize_changeset)		// whose intended write path is a dedicated helper, not a generic post API.		$is_internal_only = (			empty( $post_type->public )			&& empty( $post_type->show_in_rest )			&& ! empty( $post_type->_builtin )		); 		/**		 * Filters whether a post type accepts writes via XML-RPC.		 *		 * Defaults to false for internal-only builtin post types (public=false,		 * show_in_rest=false, _builtin=true), such as customize_changeset, whose		 * writes are meant to flow through dedicated helpers. Return true to opt		 * a post type back in.		 *		 * @since 7.1.1		 *		 * @param bool         $allowed   Whether the post type accepts XML-RPC writes.		 * @param WP_Post_Type $post_type The post type object.		 */		$allowed = apply_filters( 'xmlrpc_allow_post_type_writes', ! $is_internal_only, $post_type ); 		if ( ! $allowed ) {			return new IXR_Error( 403, __( 'Sorry, this post type is not supported over XML-RPC.' ) );		} 		$update = ! empty( $post_data['ID'] ); 		if ( $update ) {			if ( ! get_post( $post_data['ID'] ) ) {				return new IXR_Error( 401, __( 'Invalid post ID.' ) );			}			if ( ! current_user_can( 'edit_post', $post_data['ID'] ) ) {				return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );			}			if ( get_post_type( $post_data['ID'] ) !== $post_data['post_type'] ) {				return new IXR_Error( 401, __( 'The post type may not be changed.' ) );			}		} else {			if ( ! current_user_can( $post_type->cap->create_posts ) || ! current_user_can( $post_type->cap->edit_posts ) ) {				return new IXR_Error( 401, __( 'Sorry, you are not allowed to post on this site.' ) );			}		} 		switch ( $post_data['post_status'] ) {			case 'draft':			case 'pending':

Changelog

Introduced in 3.4.0. Unchanged from 6.7.10 through 7.1.3.

  1. 6.7.10
  2. 6.8.11
  3. 6.9.10
  4. 7.0.7
  5. 7.1.3

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data
Generated from the wordpress-develop 6.8.11 tag, from src/wp-includes/class-wp-xmlrpc-server.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
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