Phar requires PHP 5.2.0 or newer. Additional features require the SPL extension in order to take advantage of iteration and array access to a Phar's file contents. The phar stream does not require any additional extensions to function.
Note that a bug in the zlib.deflate stream filter fixed in PHP version 5.2.6 and newer may cause truncation of gzip and bzip2-compressed phar archives.
PHP 5.3 configured with --enable-zend-multibyte makes phar dependant on the ini option detect_unicode.
自 PHP 版本 5.3.0 Phar 扩展成为了内置的组件。在之前的版本，Phar 可以通过 PECL 扩展安装 » Phar PECL 页面 包含了历史以及更多信息。
|phar.extract_list||""||PHP_INI_ALL||Available from phar 1.1.0 to 1.2.3, removed in 2.0.0.|
|phar.cache_list||""||PHP_INI_SYSTEM||Available from phar 2.0.0.|
This option disables creation or modification of Phar archives using the phar stream or Phar object's write support. This setting should always be enabled on production machines, as the phar extension's convenient write support could allow straightforward creation of a php-based virus when coupled with other common security vulnerabilities.
This setting can only be unset in php.ini due to security reasons. If phar.readonly is disabled in php.ini, the user may enable phar.readonly in a script or disable it later. If phar.readonly is enabled in php.ini, a script may harmlessly "re-enable" the INI variable, but may not disable it.
This option will force all opened Phar archives to contain some kind of signature (currently MD5, SHA1, SHA256 and SHA512 are supported), and will refuse to process any Phar archive that does not contain a signature.
This setting can only be unset in php.ini due to security reasons. If phar.require_hash is disabled in php.ini, the user may enable phar.require_hash in a script or disable it later. If phar.require_hash is enabled in php.ini, a script may harmlessly "re-enable" the INI variable, but may not disable it.
This setting does not affect reading plain tar files with the class="classname">PharData class.
This INI setting has been removed as of phar 2.0.0
Allows mappings from a full path to a phar archive or its alias to the location of its extracted files. The format of the parameter is name=archive,name2=archive2. This allows extraction of phar files to disk, and allows phar to act as a kind of mapper to extracted disk files. This is often done for performance reasons, or to assist with debugging a phar.
示例 #1 phar.extract_list usage example
in php.ini: phar.extract_list = archive=/full/path/to/archive/,arch2=/full/path/to/arch2 <?php include "phar://archive/content.php"; include "phar://arch2/foo.php"; ?>
This INI setting was added in phar 2.0.0
Allows mapping phar archives to be pre-parsed at web server startup, providing a performance improvement that brings running files out of a phar archive very close to the speed of running those files from a traditional disk-based installation.
示例 #2 phar.cache_list usage example
in php.ini (windows): phar.cache_list =C:\path\to\phar1.phar;C:\path\to\phar2.phar in php.ini (unix): phar.cache_list =/path/to/phar1.phar:/path/to/phar2.phar
The Phar extension provides the phar stream, which allows accessing files contained within a phar transparently. See also the description of the Phar file format.