WP_Query::__isset( string $name )

Make private properties checkable for backward compatibility.

Parameters

$name

(Required) Property to check if set.

Return

(bool) Whether the property is set.

Source

File: wp-includes/class-wp-query.php 

	public function __isset( $name ) {
		if ( in_array( $name, $this->compat_fields ) ) {
			return isset( $this->$name );
		}
	}

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Changelog

Changelog
Version Description
4.0.0 Introduced.