Phar::canCompress
(PHP >= 5.3.0, PECL phar >= 1.0.0)
Phar::canCompress — Returns whether phar extension supports compression using either zlib or bzip2
Description
final public static bool Phar::canCompress
([ int
$type = 0
] )This should be used to test whether compression is possible prior to loading a phar archive containing compressed files.
Parameters
-
type -
Either Phar::GZ or Phar::BZ2 can be used to test whether compression is possible with a specific compression algorithm (zlib or bzip2).
Return Values
TRUE if compression/decompression is available, FALSE if not.
Examples
Example #1 A Phar::canCompress() example
<?php
if (Phar::canCompress()) {
echo file_get_contents('phar://compressedphar.phar/internal/file.txt');
} else {
echo 'no compression available';
}
?>
See Also
- PharFileInfo::getCompressedSize() - Returns the actual size of the file (with compression) inside the Phar archive
- PharFileInfo::isCompressed() - Returns whether the entry is compressed
- PharFileInfo::compress() - Compresses the current Phar entry with either zlib or bzip2 compression
- PharFileInfo::decompress() - Decompresses the current Phar entry within the phar
- Phar::isCompressed() - Returns Phar::GZ or PHAR::BZ2 if the entire phar archive is compressed (.tar.gz/tar.bz and so on)
- Phar::compressFiles() - Compresses all files in the current Phar archive
- Phar::decompressFiles() - Decompresses all files in the current Phar archive
- Phar::getSupportedCompression() - Return array of supported compression algorithms
- Phar::convertToExecutable() - Convert a phar archive to another executable phar archive file format
- Phar::convertToData() - Convert a phar archive to a non-executable tar or zip file
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для сжатия и архивации
- Phar
- Функция Phar::addEmptyDir() - Add an empty directory to the phar archive
- Функция Phar::addFile() - Add a file from the filesystem to the phar archive
- Функция Phar::addFromString() - Add a file from the filesystem to the phar archive
- Функция Phar::apiVersion() - Returns the api version
- Функция Phar::buildFromDirectory() - Construct a phar archive from the files within a directory.
- Функция Phar::buildFromIterator() - Construct a phar archive from an iterator.
- Функция Phar::canCompress() - Returns whether phar extension supports compression using either zlib or bzip2
- Функция Phar::canWrite() - Returns whether phar extension supports writing and creating phars
- Функция Phar::compress() - Compresses the entire Phar archive using Gzip or Bzip2 compression
- Функция Phar::compressAllFilesBZIP2() - Compresses all files in the current Phar archive using Bzip2 compression
- Функция Phar::compressAllFilesGZ() - Compresses all files in the current Phar archive using Gzip compression
- Функция Phar::compressFiles() - Compresses all files in the current Phar archive
- Функция Phar::__construct() - Construct a Phar archive object
- Функция Phar::convertToData() - Convert a phar archive to a non-executable tar or zip file
- Функция Phar::convertToExecutable() - Convert a phar archive to another executable phar archive file format
- Функция Phar::copy() - Copy a file internal to the phar archive to another new file within the phar
- Функция Phar::count() - Returns the number of entries (files) in the Phar archive
- Функция Phar::createDefaultStub() - Create a phar-file format specific stub
- Функция Phar::decompress() - Decompresses the entire Phar archive
- Функция Phar::decompressFiles() - Decompresses all files in the current Phar archive
- Функция Phar::delMetadata() - Deletes the global metadata of the phar
- Функция Phar::delete() - Delete a file within a phar archive
- Функция Phar::extractTo() - Extract the contents of a phar archive to a directory
- Функция Phar::getMetadata() - Returns phar archive meta-data
- Функция Phar::getModified() - Return whether phar was modified
- Функция Phar::getSignature() - Return MD5/SHA1/SHA256/SHA512/OpenSSL signature of a Phar archive
- Функция Phar::getStub() - Return the PHP loader or bootstrap stub of a Phar archive
- Функция Phar::getSupportedCompression() - Return array of supported compression algorithms
- Функция Phar::getSupportedSignatures() - Return array of supported signature types
- Функция Phar::getVersion() - Return version info of Phar archive
- Функция Phar::hasMetadata() - Returns whether phar has global meta-data
- Функция Phar::interceptFileFuncs() - instructs phar to intercept fopen, file_get_contents, opendir, and all of the stat-related functions
- Функция Phar::isBuffering() - Used to determine whether Phar write operations are being buffered, or are flushing directly to disk
- Функция Phar::isCompressed() - Returns Phar::GZ or PHAR::BZ2 if the entire phar archive is compressed (.tar.gz/tar.bz and so on)
- Функция Phar::isFileFormat() - Returns true if the phar archive is based on the tar/phar/zip file format depending on the parameter
- Функция Phar::isValidPharFilename() - Returns whether the given filename is a valid phar filename
- Функция Phar::isWritable() - Returns true if the phar archive can be modified
- Функция Phar::loadPhar() - Loads any phar archive with an alias
- Функция Phar::mapPhar() - Reads the currently executed file (a phar) and registers its manifest
- Функция Phar::mount() - Mount an external path or file to a virtual location within the phar archive
- Функция Phar::mungServer() - Defines a list of up to 4 $_SERVER variables that should be modified for execution
- Функция Phar::offsetExists() - determines whether a file exists in the phar
- Функция Phar::offsetGet() - Gets a PharFileInfo object for a specific file
- Функция Phar::offsetSet() - set the contents of an internal file to those of an external file
- Функция Phar::offsetUnset() - remove a file from a phar
- Функция Phar::running() - Returns the full path on disk or full phar URL to the currently executing Phar archive
- Функция Phar::setAlias() - Set the alias for the Phar archive
- Функция Phar::setDefaultStub() - Used to set the PHP loader or bootstrap stub of a Phar archive to the default loader
- Функция Phar::setMetadata() - Sets phar archive meta-data
- Функция Phar::setSignatureAlgorithm() - set the signature algorithm for a phar and apply it.
- Функция Phar::setStub() - Used to set the PHP loader or bootstrap stub of a Phar archive
- Функция Phar::startBuffering() - Start buffering Phar write operations, do not modify the Phar object on disk
- Функция Phar::stopBuffering() - Stop buffering write requests to the Phar archive, and save changes to disk
- Функция Phar::uncompressAllFiles() - Uncompresses all files in the current Phar archive
- Функция Phar::unlinkArchive() - Completely remove a phar archive from disk and from memory
- Функция Phar::webPhar() - mapPhar for web-based phars. front controller for web applications
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