ZipArchive::isCompressionMethodSupported

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

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

public ZipArchive::isCompressionMethodSupported ( int $method [, bool $encode = true ] ) : bool

Check if a compression method is supported by libzip.

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

成功时返回 TRUE，或者在失败时返回 FALSE。

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

ZipArchive::setCompressionIndex() - Set the compression method of an entry defined by its index
ZipArchive::setCompressionName() - Set the compression method of an entry defined by its name