For information on how variables behave, see the
Variables entry
in the Language Reference
section of the manual.
php.ini中的設定會影響這些函數的行為。
表格 1. Variables Configuration Options
Here is a short explanation of the configuration
directives.
The unserialize callback function will
called (with the undefind class' name as
parameter), if the unserializer finds an
undefined class which should be instanciated. A
warning appears if the specified function is not
defined, or if the function doesn't
include/implement the missing class. So only set
this entry, if you really want to implement such
a callback-function.
See also
unserialize().