php 函数extension_loaded();，extensionloadedextension_loaded — 检查一个扩展是否已经加载
例如：

是否加载  gd 库扩展
win7->cmd->php -m
[php modules]
bcmath
bz2
calendar
com_dotnet
ctype
curl
date
dom
filter
ftp
gd
hash
iconv
json
libxml
mbstring
mcrypt
mysql
mysqli
odbc
pcre
pdo
pdo_mysql
pdo_odbc
pdo_sqlite
reflection
session
simplexml
sockets
spl
sqlite
standard
tokenizer
wddx
xml
xmlreader
xmlwriter
zend optimizer
zip
zlib
[zend modules]
zend extension manager
zend optimizer
d:\php\phpstudy\php52>
http://www.bkjia.com/phpjc/931390.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/931390.htmltecharticlephp 函数extension_loaded();，extensionloaded extension_loaded 检查一个扩展是否已经加载 例如： ?phpif (!extension_loaded('gd')) { if (!dl('gd.so')) { exit; }}? 是否...