Home php教程 php手册 浅析rawurlencode()和urlencode()函数区别

浅析rawurlencode()和urlencode()函数区别

Jun 13, 2016 am 10:10 AM
urlencode introduce about function the difference and article

本文章来给大家介绍关于rawurlencode()和urlencode()函数区别用法介绍,各位朋友可参考。

 

今天在阅读开源代码时发现了一个URL的编码函数:rawurlencode(),以前一直没有注意过,因为在平时的开发上主要使用的是 urlencode(),故专门研究了一番。

其实这两个函数的区别很简单,它们两个都会把URL中的非英文字符进行转义,替换成"%"后跟两位十六进制数,不同的是:rawurlencode 遵守是94年国际标准备忘录RFC 1738,对空格的转义是'%20′;而urlencode的编码实现的是传统做法,和POST表单数据一样会把空格转义成"+"号。

举个例子:
如果URL地址源的形式是:http://www.bKjia.c0m 编码区别
rawurlencode($url):
http%3A%2F%2Fityizhan.com%2FPHP%20%E7%BC%96%E7%A0%81%E5%8C%BA%E5%88%AB%2B
urlencode($url):
http%3A%2F%2Fityizhan.com%2FPHP+%E7%BC%96%E7%A0%81%E5%8C%BA%E5%88%AB%2B

从这个例子中可以很明显的看出二者的区别,如果我们想给编码的URL解码的话,可以使用这两个函 数:rawurldecode(),urldecode() 。在实际的开发中为了避免URL格式不统一,还是推荐大家使用rawurlencode()来进行URL的编码。

同样的操作在Javascript也有一些区别,大家可以参考:javascript的URL编码与反编码, 里面讲述了Javascript中escape(), encodeURI() ,encodeURIComponent()的编码使用

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