少用但始终都会碰到 - 已加载的模块 ¶

• 作者：KK

• 发表日期：2017.3.22

phpinfo 基本查看 ¶

一般我们都会在页面上执行phpinfo()输出HTML信息，我们可以在里面找到许多已经启用加载的模块信息和具体配置。

代码判断是否加载了模块 ¶

比如判断是否加载了xdebug模块：

var_dump(extension_loaded('xdebug'));

会返回true/false表示是否已经加载

代码获取所有加载的模块列表 ¶

print_r(get_loaded_extensions());

//结果大致如下：
Array
(
    [0] => Core
    [1] => bcmath
    [2] => calendar
    [3] => ctype
    [4] => date
    [5] => filter
    [6] => hash
    [7] => iconv
    [8] => json
    [9] => mcrypt
    [10] => SPL
    [11] => pcre
    [12] => Reflection
    [13] => session
    [14] => standard
    [15] => mysqlnd
    [16] => tokenizer
    [17] => zip
    [18] => zlib
    [19] => libxml
    [20] => dom
    [21] => PDO
    [22] => bz2
    [23] => SimpleXML
    [24] => xml
    [25] => wddx
    [26] => xmlreader
    [27] => xmlwriter
    [28] => cgi-fcgi
    [29] => openssl
    [30] => curl
    [31] => fileinfo
    [32] => gd
    [33] => mbstring
    [34] => mysqli
    [35] => Phar
    [36] => pdo_mysql
    [37] => PDO_ODBC
    [38] => pdo_sqlite
    [39] => soap
    [40] => sqlite3
)

命令行模式下查看启用的模块 ¶

php -m

就会输出模块列表：

[PHP Modules]
bcmath
calendar
Core
ctype
curl
date
dom
fileinfo
filter
gd
gettext
hash
iconv
json
libxml
mbstring
mcrypt
mysqlnd
openssl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
readline
Reflection
session
SimpleXML
soap
SPL
sqlite3
standard
tokenizer
wddx
xml
xmlreader
xmlwriter
zip
zlib

[Zend Modules]