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关于PHP核心功能详细介绍

Jun 13, 2016 am 11:05 AM
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PHP是我们一直都很关注的语言之一,随着PHP6的升级,它的功能也越来越强大,我们这里就PHP核心内容详细的介绍下吧。PHP核心开发者Andrei Zmievski在最近举行的2009 Zend/PHP会议的主题发言中提出:“在接下来的PHP6重要升级中,将通过支持Unicode来帮助开发者们写出能够部署到多个不同语言市场的应用程序。”

商业开发中如果只是开发为特语言市场的应用程序,就会失去其他地方的商业机会。早在2006年4月,Andrei Zmievski就提出未来需要支持Unicode,而且他认为这件事早就应该做了。所谓Unicode就是不论什么平台,什么语言,都使用统一的编码,对于PHP6,包括string类型在内,都将是Unicode内置的。

PHP6的Unicode使得写出能处理各种语言和编码的应用程序更容易,比如很容易就可以写出一个同时支持中、日、英文的应用程序,以同时面对来自中国、日本和英语国家的用户。PHP增强了国际化是件一直令人期待,让人高兴的事情,特别是对那些不是美国和英国本土出生的软件开发者和使用PHP网站提供服务的企业主,包括持续增长的中国外贸企业站点。一些提供PHP内容管理系统的厂商也反映目前的PHP版本支持国际化非常困难,因此即将升级的国际化对他们非常有帮助。

从PHP的官方网站上看到 PHP的Unicode Completion Stats截至今日为70%左右,但PHP核心开发者仍然需要完成在cookie访问和PDO (PHP Database Objects)等方面的Unicode开发。Zmievski说:“这部分完成后,我们会在一些知名的应用程序和框架上测试PHP6,比如 Drupal。”

PHP核心开发者Gutsman表示:PHP现在的应用更加广泛了,经济不景气反而加速了开源和PHP的使用,因为在经济衰退中,公司不得不增加生产性,降低成本,而PHP恰好能做到这一点。

同样是Web开发语言和平台的重要一支,Java方面的发展,最初的企业级Java由于不适合Web负载,已经逐步被流行的轻量级框架如Spring等取代,有一些Java开发者也转向PHP这样的动态语言,因此国际化的支持对于PHP阵营的壮大将起到更大的作用。但对于互联网的实现载体,Web开发语言 /平台,它们的生命力本身就来源于随着互联网的发展而不断的进化和发展,无论是PHP支持了Unicode还是Java变得更加轻巧,都是如此。

值得关注的是,PHP6也将改善数字的处理,包括长型数字。另外traits,区别于类的垂直继承,一个能够水平重用代码的功能也在考虑中,开发者将不需要处理多重继承就可以追加功能。

Zend上周也宣布了Zend's PHP IDE——Zend Studio 7.1的beta版,该版本提供了远程服务器的支持,并且集成了任务的支持。7.1版计划在2009年末正式提供。

关于PHP6对于Unicode的更详细内容可以参考PHP官方站点以及Andrei Zmievski的站点中提供的发言文档,最新的PHP6的开发版本可以从http://snaps.php.net/获得。


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