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Phar::canCompress

(PHP >= 5.3.0, PECL phar >= 1.0.0)

Phar::canCompress — Returns whether phar extension supports compression using either zlib or bzip2

Описание

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.

Параметри

type: Either Phar::GZ or Phar::BZ2 can be used to test whether compression is possible with a specific compression algorithm (zlib or bzip2).

Връщани стойности

TRUE if compression/decompression is available, FALSE if not.

Примери

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';
}
?>

Вж. също

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

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