它们的处理方式有什么不同？
具体地说，为什么在web服务器等生产级别的长寿命应用程序中使用Python很常见，而PHP的效率水平却不相似？
PHP被设计为一种超文本脚本语言。每一个过程都被设计为在很短的时间后结束。所以内存管理和GC基本上无关紧要。
然而，PHP的易用性和流行性使其在长寿命的程序中得到了应用，如守护进程、大量计算、套接字服务器等。
PHP 5.3引入了许多功能和修复程序，使其适用于此类应用程序，但在我看来，内存管理在这方面的重要性较低。
PHPs错误管理现在相当不错，但正如我所知道的每一种编程语言一样，都可能产生内存泄漏。
您仍然无法使用与编写Java或Python应用程序相同的样式进行编写。许多PHP程序可能会显示Java/Python没有的严重问题。
你可以将其描述为“更糟糕”，但我不会。PHP只是一套不同的工具，你必须处理不同的工具。
我工作的公司有很多用PHP编写的系统程序和守护程序，运行起来很有魅力。
当谈到“生产级长寿应用程序”时，我认为PHP最大的警告是它的多处理和线程能力（第二个基本上不存在）。
当然，也有可能分叉进程、访问共享内存、进行进程间通信以及拥有消息队列等。但Python在这方面遥遥领先，因为它是为这样的工作自下而上设计的。
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