Phar::canCompress

(PHP 5 >= 5.3.0, PHP 7, PECL phar >= 1.0.0)

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

说明

final public static Phar::canCompress ([ int $type = 0 ] ) : bool

This should be used to test whether compression is possible prior to loading a phar archive containing compressed files.

参数

type

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

返回值

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

范例

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';
}
?>

参见