PHP 手册
Migrating from PHP 5.1.x to PHP 5.2.x

New Functions

PHP 5.2.x introduced some new functions:

PHP Core:

Image:

libXML:

mbstring:

ming (As of PHP 5.2.1):

openssl:

spl:

pcre:

pgsql:

posix:

gmp:

xmlwriter:


Migrating from PHP 5.1.x to PHP 5.2.x
PHP 手册