WP_Filesystem_Base::abspath()

Return the path on the remote filesystem of ABSPATH.

Return

(string) The location of the remote path.

Source

File: wp-admin/includes/class-wp-filesystem-base.php 

	public function abspath() {
		$folder = $this->find_folder(ABSPATH);
		// Perhaps the FTP folder is rooted at the ClassicPress install, Check for wp-includes folder in root, Could have some false positives, but rare.
		if ( ! $folder && $this->is_dir( '/' . WPINC ) )
			$folder = '/';
		return $folder;
	}

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Related

Changelog

Changelog
Version Description
WP-2.7.0 Introduced.