Phar::canCompress

(PECL phar:1.0.0-1.2.1)

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

说明

bool Phar::canCompress ([ int $type ] )

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

PharFileInfo::isCompressed()


	PHP5中文手册 Phar::apiVersion Phar::canWrite phar PHP Manual Phar::canCompress (PECL phar:1.0.0-1.2.1) Phar::canCompress — Returns whether phar extension supports compression using either zlib or bzip2 说明 bool Phar::canCompress ([ int `$type` ] ) 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 PharFileInfo::isCompressed() Phar::apiVersion Phar::canWrite phar PHP Manual