通常，在php的开发过程中，我们会使用到第三方扩展，这时候，我们对于php扩展的信息的查看就显得尤为重要了。一般情况下，我们查看到扩展信息，都是直接通过 cat *.ini 文件来进行，这样子的效率是极低的，因为有时候你会不知道ini的文件在什么路径下，虽然通过查找很容易找到，但是总的来说还是麻烦的。

那么我们要如快速的查看扩展信息呢？

当然是使用 php --ri 命令行了。

以查询  Seaslog 为例：

[email protected]:/tmp# php --ri Seaslog

SeasLog

SeasLog support => Enabled

SeasLog Version => 1.8.5

SeasLog Author => Chitao.Gao [ [email protected] ]

SeasLog Supports => https://github.com/SeasX/SeasLog

Directive => Local Value => Master Value

seaslog.default_basepath => /home/www/log/seaslog-test => /home/www/log/seaslog-test

seaslog.default_logger => default => default

seaslog.default_datetime_format => Y:m:d H:i:s => Y:m:d H:i:s

seaslog.default_template => %T | %L | %P | %Q | %t | %M => %T | %L | %P | %Q | %t | %M

seaslog.disting_folder => On => On

seaslog.disting_type => Off => Off

seaslog.disting_by_hour => Off => Off

seaslog.use_buffer => On => On

seaslog.buffer_size => 100 => 100

seaslog.buffer_disabled_in_cli => Off => Off

seaslog.trace_notice => Off => Off

seaslog.trace_warning => Off => Off

seaslog.trace_error => On => On

seaslog.trace_exception => On => On

seaslog.level => 8 => 8

seaslog.recall_depth => 0 => 0

seaslog.appender => 1 => 1

seaslog.appender_retry => 0 => 0

seaslog.remote_host => 127.0.0.1 => 127.0.0.1

seaslog.remote_port => 514 => 514

seaslog.remote_timeout => 1 => 1

seaslog.trim_wrap => Off => Off

seaslog.throw_exception => On => On

seaslog.ignore_warning => On => On

可以看到信息是很丰富的，这样子，以后对于扩展信息的查询或者生效情况进行快速查阅了。