jQuery和PHP:编码和解码URL

Question

每当点击链接时,我都会通过URL将字符串传递给另一个页面.

原始a标记及其href是通过PHP while循环创建的,如下所示:

<a href=".($row['secondary'] == 'true' ? "secondary_imgs.php?imgId=".$row['imgId']."
    &imgTitle=".$row['imgTitle']."" : "new_arrivals_img/".$row['imgURL']."").">

注:该a标签不包含其他属性,但我删除他们简单.

将href然后被附加,在当前窗口的尺寸,使用下列jQuery函数:

$("a[href^='secondary_imgs.php']").click(function(){
    var pageWidth = $(window).width();
    var pageHeight = $(window).height();
    var url = $(this).attr('href');
    var idx = url.indexOf('&pageWidth=');
    if (idx != -1) {
        url = url.substr(0, idx);
    }
    url += '&pageWidth=' + pageWidth + '&pageHeight=' + pageHeight;
    $(this).attr('href', url);
});

我的问题是,在这种情况下我应该使用哪种编码URL的方法,因为它需要首先使用PHP,然后是jQuery/JavaScript,最后通过PHP解码？或者将它必须同时在PHP和jQuery/JavaScript来做些什么呢？原来PHP $row['imgTitle']将始终至少有空间在里面,所以我知道它需要,于是做了肯定.但是看到附加值总是一个等于数字的变量,那还需要编码吗？

我知道在每种编码语言中有几种编码/解码URL的方法,而我的知识还不足以做出选择.

如果有人也可以举例说明我将如何执行每一步,那将非常感激.

Answer 1

您应该urlencode()在PHP中使用来编码URI组件.

javascript中的等效函数是encodeURIComponent().

PHP将自动解码这样编码的参数.

那么,在你的PHP中:

'<a href="..&imgTitle='.urlencode($row['imgTitle'])

等效地,在你的javascript中:

'&someparam=' + encodeURIComponent(someValue)

Answer 2

为什么需要先用PHP完成？这个JS urlencode函数可以从PHP进行urldecoded.编码一次,解码一次:

function urlencode (str) {
    // URL-encodes string  
    // 
    // version: 1107.2516
    // discuss at: http://phpjs.org/functions/urlencode
    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: AJ
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: travc
    // +      input by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Lars Fischer
    // +      input by: Ratheous
    // +      reimplemented by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Joris
    // +      reimplemented by: Brett Zamir (http://brett-zamir.me)
    // %          note 1: This reflects PHP 5.3/6.0+ behavior
    // %        note 2: Please be aware that this function expects to encode into UTF-8 encoded strings, as found on
    // %        note 2: pages served as UTF-8
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
    // *     example 2: urlencode('http://kevin.vanzonneveld.net/');
    // *     returns 2: 'http%3A%2F%2Fkevin.vanzonneveld.net%2F'
    // *     example 3: urlencode('http://www.google.nl/search?q=php.js&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a');
    // *     returns 3: 'http%3A%2F%2Fwww.google.nl%2Fsearch%3Fq%3Dphp.js%26ie%3Dutf-8%26oe%3Dutf-8%26aq%3Dt%26rls%3Dcom.ubuntu%3Aen-US%3Aunofficial%26client%3Dfirefox-a'
    str = (str + '').toString();

    // Tilde should be allowed unescaped in future versions of PHP (as reflected below), but if you want to reflect current
    // PHP behavior, you would need to add ".replace(/~/g, '%7E');" to the following.
    return encodeURIComponent(str).replace(/!/g, '%21').replace(/'/g, '%27').replace(/\(/g, '%28').
    replace(/\)/g, '%29').replace(/\*/g, '%2A').replace(/%20/g, '+');
}