(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL phar >= 1.0.0)
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.
compression
Either Phar::GZ or Phar::BZ2 can be
used to test whether compression is possible with a specific compression
algorithm (zlib or bzip2).
示例 #1 A Phar::canCompress() example
<?php
if (Phar::canCompress()) {
echo file_get_contents('phar://compressedphar.phar/internal/file.txt');
} else {
echo 'no compression available';
}
?>