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Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0. There are a number of ways to mitigate this: * If it is an accidental typo for a declared property: fix the typo. * For known properties: declare them on the class. * For unknown properties: add the magic `__get()`, `__set()`, et al. methods to the class or let the class extend `stdClass` which has highly optimized versions of these magic methods built in. * For unknown ''use'' of dynamic properties, the `#[AllowDynamicProperties]` attribute can be added to the class. The attribute will automatically be inherited by child classes. Trac ticket #56034 is open to investigate and handle the third and fourth type of situations, however it has become clear this will need more time and will not be ready in time for WP 6.1. To reduce “noise” in the meantime, both in the error logs of WP users moving onto PHP 8.2, in the test run logs of WP itself, in test runs of plugins and themes, as well as to prevent duplicate tickets from being opened for the same issue, this commit adds the `#[AllowDynamicProperties]` attribute to all “parent” classes in WP. The logic used for this commit is as follows: * If a class already has the attribute: no action needed. * If a class does not `extend`: add the attribute. * If a class does `extend`: - If it extends `stdClass`: no action needed (as `stdClass` supports dynamic properties). - If it extends a PHP native class: add the attribute. - If it extends a class from one of WP's external dependencies: add the attribute. * In all other cases: no action — the attribute should not be needed as child classes inherit from the parent. Whether or not a class contains magic methods has not been taken into account, as a review of the currently existing magic methods has shown that those are generally not sturdy enough and often even set dynamic properties (which they should not). See the [https://www.youtube.com/watch?v=vDZWepDQQVE live stream from August 16, 2022] for more details. This commit only affects classes in the `src` directory of WordPress core. * Tests should not get this attribute, but should be fixed to not use dynamic properties instead. Patches for this are already being committed under ticket #56033. * While a number bundled themes (2014, 2019, 2020, 2021) contain classes, they are not a part of this commit and may be updated separately. Reference: [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties]. Follow-up to [53922]. Props jrf, hellofromTonya, markjaquith, peterwilsoncc, costdev, knutsp, aristath. See #56513, #56034. Built from https://develop.svn.wordpress.org/trunk@54133 git-svn-id: http://core.svn.wordpress.org/trunk@53692 1a063a9b-81f0-0310-95a4-ce76da25c4cd
389 lines
6.3 KiB
PHP
389 lines
6.3 KiB
PHP
<?php
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/**
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* Post API: WP_Post class
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*
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* @package WordPress
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* @subpackage Post
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* @since 4.4.0
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*/
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/**
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* Core class used to implement the WP_Post object.
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*
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* @since 3.5.0
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*
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* @property string $page_template
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*
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* @property-read int[] $ancestors
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* @property-read int[] $post_category
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* @property-read string[] $tags_input
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*/
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#[AllowDynamicProperties]
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final class WP_Post {
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/**
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* Post ID.
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*
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* @since 3.5.0
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* @var int
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*/
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public $ID;
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/**
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* ID of post author.
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*
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* A numeric string, for compatibility reasons.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_author = 0;
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/**
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* The post's local publication time.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_date = '0000-00-00 00:00:00';
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/**
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* The post's GMT publication time.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_date_gmt = '0000-00-00 00:00:00';
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/**
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* The post's content.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_content = '';
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/**
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* The post's title.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_title = '';
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/**
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* The post's excerpt.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_excerpt = '';
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/**
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* The post's status.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_status = 'publish';
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/**
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* Whether comments are allowed.
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*
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* @since 3.5.0
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* @var string
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*/
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public $comment_status = 'open';
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/**
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* Whether pings are allowed.
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*
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* @since 3.5.0
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* @var string
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*/
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public $ping_status = 'open';
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/**
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* The post's password in plain text.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_password = '';
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/**
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* The post's slug.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_name = '';
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/**
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* URLs queued to be pinged.
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*
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* @since 3.5.0
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* @var string
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*/
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public $to_ping = '';
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/**
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* URLs that have been pinged.
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*
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* @since 3.5.0
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* @var string
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*/
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public $pinged = '';
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/**
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* The post's local modified time.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_modified = '0000-00-00 00:00:00';
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/**
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* The post's GMT modified time.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_modified_gmt = '0000-00-00 00:00:00';
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/**
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* A utility DB field for post content.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_content_filtered = '';
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/**
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* ID of a post's parent post.
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*
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* @since 3.5.0
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* @var int
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*/
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public $post_parent = 0;
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/**
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* The unique identifier for a post, not necessarily a URL, used as the feed GUID.
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*
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* @since 3.5.0
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* @var string
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*/
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public $guid = '';
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/**
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* A field used for ordering posts.
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*
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* @since 3.5.0
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* @var int
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*/
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public $menu_order = 0;
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/**
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* The post's type, like post or page.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_type = 'post';
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/**
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* An attachment's mime type.
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*
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* @since 3.5.0
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* @var string
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*/
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public $post_mime_type = '';
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/**
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* Cached comment count.
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*
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* A numeric string, for compatibility reasons.
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*
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* @since 3.5.0
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* @var string
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*/
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public $comment_count = 0;
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/**
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* Stores the post object's sanitization level.
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*
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* Does not correspond to a DB field.
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*
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* @since 3.5.0
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* @var string
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*/
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public $filter;
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/**
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* Retrieve WP_Post instance.
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*
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* @since 3.5.0
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @param int $post_id Post ID.
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* @return WP_Post|false Post object, false otherwise.
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*/
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public static function get_instance( $post_id ) {
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global $wpdb;
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$post_id = (int) $post_id;
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if ( ! $post_id ) {
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return false;
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}
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$_post = wp_cache_get( $post_id, 'posts' );
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if ( ! $_post ) {
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$_post = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE ID = %d LIMIT 1", $post_id ) );
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if ( ! $_post ) {
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return false;
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}
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$_post = sanitize_post( $_post, 'raw' );
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wp_cache_add( $_post->ID, $_post, 'posts' );
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} elseif ( empty( $_post->filter ) || 'raw' !== $_post->filter ) {
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$_post = sanitize_post( $_post, 'raw' );
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}
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return new WP_Post( $_post );
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}
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/**
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* Constructor.
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*
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* @since 3.5.0
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*
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* @param WP_Post|object $post Post object.
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*/
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public function __construct( $post ) {
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foreach ( get_object_vars( $post ) as $key => $value ) {
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$this->$key = $value;
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}
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}
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/**
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* Isset-er.
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*
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* @since 3.5.0
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*
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* @param string $key Property to check if set.
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* @return bool
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*/
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public function __isset( $key ) {
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if ( 'ancestors' === $key ) {
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return true;
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}
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if ( 'page_template' === $key ) {
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return true;
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}
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if ( 'post_category' === $key ) {
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return true;
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}
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if ( 'tags_input' === $key ) {
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return true;
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}
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return metadata_exists( 'post', $this->ID, $key );
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}
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/**
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* Getter.
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*
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* @since 3.5.0
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*
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* @param string $key Key to get.
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* @return mixed
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*/
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public function __get( $key ) {
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if ( 'page_template' === $key && $this->__isset( $key ) ) {
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return get_post_meta( $this->ID, '_wp_page_template', true );
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}
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if ( 'post_category' === $key ) {
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if ( is_object_in_taxonomy( $this->post_type, 'category' ) ) {
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$terms = get_the_terms( $this, 'category' );
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}
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if ( empty( $terms ) ) {
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return array();
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}
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return wp_list_pluck( $terms, 'term_id' );
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}
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if ( 'tags_input' === $key ) {
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if ( is_object_in_taxonomy( $this->post_type, 'post_tag' ) ) {
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$terms = get_the_terms( $this, 'post_tag' );
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}
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if ( empty( $terms ) ) {
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return array();
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}
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return wp_list_pluck( $terms, 'name' );
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}
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// Rest of the values need filtering.
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if ( 'ancestors' === $key ) {
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$value = get_post_ancestors( $this );
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} else {
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$value = get_post_meta( $this->ID, $key, true );
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}
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if ( $this->filter ) {
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$value = sanitize_post_field( $key, $value, $this->ID, $this->filter );
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}
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return $value;
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}
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/**
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* {@Missing Summary}
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*
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* @since 3.5.0
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*
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* @param string $filter Filter.
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* @return WP_Post
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*/
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public function filter( $filter ) {
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if ( $this->filter === $filter ) {
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return $this;
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}
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if ( 'raw' === $filter ) {
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return self::get_instance( $this->ID );
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}
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return sanitize_post( $this, $filter );
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}
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/**
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* Convert object to array.
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*
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* @since 3.5.0
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*
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* @return array Object as array.
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*/
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public function to_array() {
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$post = get_object_vars( $this );
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foreach ( array( 'ancestors', 'page_template', 'post_category', 'tags_input' ) as $key ) {
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if ( $this->__isset( $key ) ) {
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$post[ $key ] = $this->__get( $key );
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}
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}
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return $post;
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}
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}
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