ZipArchive::getStreamName	ZipArchive::isEncryptionMethodSupported

ZipArchive	Last updated: Mon, 26 Oct 2026

ZipArchive::isCompressionMethodSupported

(PHP >= 8.0.0, PECL zip >= 1.19.0)

ZipArchive::isCompressionMethodSupported — Check if a compression method is supported by libzip

public static function ZipArchive::isCompressionMethodSupported(int $method, bool $enc = true): bool

Check if a compression method is supported by libzip.

method: The compression method, one of the ZipArchive::CM_* constants.
enc: If true check for compression, else check for decompression.

Returns true on success or false on failure.

Note:
This function is only available if built against libzip ≥ 1.7.0.