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filter is not described

unzip_file_use_ziparchive filter-hook . WP 3.0.0

Filters whether to use ZipArchive to unzip archives.

Usage

add_filter( 'unzip_file_use_ziparchive', 'filter_function_name_5339' );
function filter_function_name_5339( $ziparchive ){
	// filter...

	return $ziparchive;
}
$ziparchive(true/false)
Whether to use ZipArchive.
Default: true

Where the hook is called

unzip_file()
unzip_file_use_ziparchive
wp-admin/includes/file.php 1077
if ( class_exists( 'ZipArchive', false ) && apply_filters( 'unzip_file_use_ziparchive', true ) ) {

Where the hook is used (in WP core)

Does not used.