I wrote a little class for storing global variables/functions. My question is - is it necessary to destroy the class object after the script has finished? or will PHP destroy that object itself?
我写了一个用于存储全局变量/函数的小类。我的问题是 - 在脚本完成后是否有必要销毁类对象？或者PHP会破坏该对象本身？
Here's my code:
这是我的代码：
$web=new c_web("myWeb");
$web->loadTemplate("/!framework/admin/template.htm");
$web->doStuff();
// script has finished - destroying required here?
In case I need to destroy it, how can I do that?
如果我需要销毁它，我该怎么做？
3 个解决方案
#1
8
If the script finishes, the memory is released. You're ready as is :)
如果脚本完成，则释放内存。你已经准备好了:)
#2
4
No, you do not need to destroy any variable yourself (and an object is a variable) : as soon as your PHP script reaches its end, its variables will be freed, and the correspondig memory released.
不，你不需要自己销毁任何变量（并且一个对象是一个变量）：一旦你的PHP脚本到达它的末尾，它的变量将被释放，并且相应的内存被释放。
Actually, a variable gets destroyed automatically when the end of its variable's scope is reached -- and, when you reach end of script, it's the end of the scope introduced by that script's execution.
实际上，当变量到达其变量范围的末尾时，变量会自动被破坏 - 当您到达脚本末尾时，它就是该脚本执行引入的范围的结束。
(Answering a comment to another answer)
Of course, when your script is ended because of an error, the same thing happens : the variables are freed, and the memory released.
（回答另一个答案的评论）当然，当你的脚本由于错误而结束时，同样的事情发生了：变量被释放，内存被释放。
#3
4
As @Nanne sayd, if the script finished the memory is released, however in some circumstances you might whant to unset($web); .
正如@Nanne所说，如果脚本完成内存被释放，但在某些情况下你可能会想要取消设置（$ web）; 。
#1
8
If the script finishes, the memory is released. You're ready as is :)
如果脚本完成，则释放内存。你已经准备好了:)
#2
4
No, you do not need to destroy any variable yourself (and an object is a variable) : as soon as your PHP script reaches its end, its variables will be freed, and the correspondig memory released.
不，你不需要自己销毁任何变量（并且一个对象是一个变量）：一旦你的PHP脚本到达它的末尾，它的变量将被释放，并且相应的内存被释放。
Actually, a variable gets destroyed automatically when the end of its variable's scope is reached -- and, when you reach end of script, it's the end of the scope introduced by that script's execution.
实际上，当变量到达其变量范围的末尾时，变量会自动被破坏 - 当您到达脚本末尾时，它就是该脚本执行引入的范围的结束。
(Answering a comment to another answer)
Of course, when your script is ended because of an error, the same thing happens : the variables are freed, and the memory released.
（回答另一个答案的评论）当然，当你的脚本由于错误而结束时，同样的事情发生了：变量被释放，内存被释放。
#3
4
As @Nanne sayd, if the script finished the memory is released, however in some circumstances you might whant to unset($web); .
正如@Nanne所说，如果脚本完成内存被释放，但在某些情况下你可能会想要取消设置（$ web）; 。