(PECL phar:1.0.0-1.2.1)
Phar::canCompress — Returns whether phar extension supports compression using either zlib or bzip2
This should be used to test whether compression is possible prior to loading a phar archive containing compressed files.
Either Phar::GZ or Phar::BZ2 can be used to test whether compression is possible with a specific compression algorithm (zlib or bzip2).
TRUE if compression/decompression is available, FALSE if not.
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';
}
?>