Zlib/setup-Phpdoc专题

安装／配置

目录

• 需求
• 安装
• 运行时配置
• 资源类型

需求

This module uses the functions of » zlib by Jean-loup Gailly and Mark Adler. You have to use a zlib version >= 1.0.9 with this module. As of PHP 5.4.0 you have to use zlib >= 1.2.0.4.

安装

Zlib support in PHP is not enabled by default. You will need to configure PHP --with-zlib[=DIR]

PHP 的 Windows 版本已内建对此扩展的支持。不需要载入额外的扩展来使用这些函数。

运行时配置

这些函数的行为受 php.ini 中的设置影响。

The zlib extension offers the option to transparently compress your pages on-the-fly, if the requesting browser supports this. Therefore there are three options in the configuration file php.ini.

有关 PHP_INI_* 样式的更多详情与定义，见 配置可被设定范围。

这是配置指令的简短说明。

zlib.output_compression bool/int
Whether to transparently compress pages. If this option is set to "On" in php.ini or the Apache configuration, pages are compressed if the browser sends an "Accept-Encoding: gzip" or "deflate" header. "Content-Encoding: gzip" (respectively "deflate") and "Vary: Accept-Encoding" headers are added to the output. In runtime, it can be set only before sending any output.

This option also accepts integer values instead of boolean "On"/"Off", using this you can set the output buffer size (default is 4KB).

Note:

output_handler must be empty if this is set 'On' ! Instead you must use zlib.output_handler.

zlib.output_compression_level int
Compression level used for transparent output compression. Specify a value between 0 (no compression) to 9 (most compression). The default value, -1, lets the server decide which level to use.

zlib.output_handler string
You cannot specify additional output handlers if zlib.output_compression is activated here. This setting does the same as output_handler but in a different order.

资源类型

This extension defines a file pointer resource returned by <span class="function">gzopen. Prior to PHP 8.0.0, zlib.deflate and zlib.inflate resources were also defined.