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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

Description

代码语言:javascript
复制
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

代码语言:javascript
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<?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

← Phar::buildFromIterator

Phar::canWrite →

代码语言:txt
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 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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