WP_Comment::__isset( string $name ): bool

Determines whether a non-public property is set.

Description

If $name matches a post field, the comment post will be loaded and the post’s value checked.

Parameters

$namestringrequired: Property to check if set.

Return

bool Whether the property is set.

Source

public function __isset( $name ) {
	if ( in_array( $name, $this->post_fields, true ) && 0 !== (int) $this->comment_post_ID ) {
		$post = get_post( (int) $this->comment_post_ID );
		return $post && property_exists( $post, $name );
	}

	return false;
}

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Uses	Description
get_post()`wp-includes/post.php`	Retrieves post data given a post ID or post object.

Changelog

Version	Description
7.1.0	Returns false instead of causing a fatal error when the comment’s post cannot be found.
4.4.0	Introduced.

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