PharFileInfo::decompress

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL phar >= 2.0.0)

PharFileInfo::decompress — Decompresses the current Phar entry within the phar

说明

public PharFileInfo::decompress(): bool

This method decompresses the file inside the Phar archive. Depending on how the file is compressed, the bzip2 or zlib extensions must be enabled to take advantage of this feature. As with all functionality that modifies the contents of a phar, the phar.readonly INI variable must be off in order to succeed if the file is within a Phar archive. Files within PharData archives do not have this restriction.

参数

此函数没有参数。

返回值

成功时返回 true，或者在失败时返回 false。

错误／异常

Throws BadMethodCallException if the phar.readonly INI variable is on, or if the bzip2/zlib extension is not available.

范例

示例 #1 A PharFileInfo::decompress() example


<?php
try {
    $p = new Phar('/path/to/my.phar', 0, 'my.phar');
    $p['myfile.txt'] = 'hi';
    $file = $p['myfile.txt'];
    $file->compress(Phar::GZ);
    var_dump($file->isCompressed());
    $p['myfile.txt']->decompress();
    var_dump($file->isCompressed());
} catch (Exception $e) {
    echo 'Create/modify failed for my.phar: ', $e;
}
?>

以上例程会输出：

int(4096)
bool(false)

参见

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
Phar::canCompress() - Returns whether phar extension supports compression using either zlib or bzip2
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::compress() - Compresses the entire Phar archive using Gzip or Bzip2 compression
Phar::decompress() - Decompresses the entire Phar archive
Phar::getSupportedCompression() - Return array of supported compression algorithms

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官方地址：https://www.php.net/manual/en/pharfileinfo.decompress.php

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PharFileInfo::decompress

说明

参数

返回值

错误／异常

范例

参见

User Contributed Notes