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I have a link like this one

<a href="site.com/register.php?mid=username&mode=bn&bid=1">

Now i need to get value of mid or bid on the basis of 

site.com/register.php

in a page. and need to do in javascript. http is also there.

How to do that.

Thank you.

Racheal
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    JS or PHP? Which one? Either case, just use the HTML parser/DOM built in. – nhahtdh Sep 19 '14 at 09:55
  • http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript – Melbz Sep 19 '14 at 09:56
  • The link is incorrect, unless you really want to relatively link to `http://www.example.com/site.com/register.php?mid=username&mode=bn&bid=1` when linking from `http://www.example.com/`. – Pavel Šimerda Sep 19 '14 at 09:56
  • I have used getAttribute but couldn't find the way to match site.com/register.php – Racheal Sep 19 '14 at 09:57
  • try this `[^"]+(?=\?)` or ` – Avinash Raj Sep 19 '14 at 09:57
  • when do you need this? Do you want after you have clicked that link or during the html page is being loaded? It's unclear on how you are executing this part – andrex Sep 19 '14 at 09:58
  • @Pavel Šimerda. no not like that, you didn't get me. i just want to get a particular link value on the basis of text which i put in code. – Racheal Sep 19 '14 at 09:59
  • I'm afraid you didn't get *me*. I was just pointing out that the link in your example is most probably wrong. – Pavel Šimerda Sep 19 '14 at 10:00

2 Answers2

1

Try this :

put id for anchor tag

<a id="anchor1" href="site.com/register.php?mid=username&mode=bn&bid=1">

use below javascript

<script>
 var href = document.getElementById('anchor1').href;
 //get index of ?
 var indexStart = href.indexOf('?');
 var indexLast = href.length;
 //get href from ? upto total length
 var params = href.substring(indexStart+1, indexLast);
 //get tokens with seperator as '&' and iterate it
 var paramsArray = params.split("&");
 for(var i=0;i<paramsArray.length;i++)
 {
   //get key and value pair
   var paramKeyValue = paramsArray[i];
   var keyValue = paramKeyValue.split('=');
   alert("Key="+keyValue[0]+" and value="+keyValue[1]);
 }
</script>

Demo Link

Bhushan Kawadkar
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  • value is not coming in href. – Racheal Sep 19 '14 at 10:28
  • i am using only var href = document.getElementById("anchor1").href; alert(href); – Racheal Sep 19 '14 at 10:30
  • and console response Uncaught TypeError: Cannot read property 'href' of null .... i have provided id same id to anchor tag. – Racheal Sep 19 '14 at 10:31
  • I have missed closing bracket in for loop, now corrected. this is the demo link http://jsfiddle.net/7La9u8p8/16/ – Bhushan Kawadkar Sep 19 '14 at 10:36
  • i think var href = document.getElementById("anchor1").href; alert(href); is not use anymore as my editor dreamweaver is not supporting it also there is no alert is showing with this. – Racheal Sep 19 '14 at 10:45
  • your example is working fine if i use jquery, but i want to use with pure javascript, once i remove jquery in your code, it fail to give alert. – Racheal Sep 19 '14 at 11:00
  • Now i have done it with your code. thank you. – Racheal Sep 19 '14 at 11:23
  • actually I was not able to put javascript code as it is in jsfiddle hence added a button click event. I am glad that it is working for you :) – Bhushan Kawadkar Sep 19 '14 at 11:27
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var Links = document.getElementsByTagName('a');

var Values = {}; 

for(var i = 0; i < Links.length; i++) { 
    if(Links[i].href.toString().indexOf('site.com/register.php') != -1) {

        var Str = Links[i].href.toString();
        var Arr = Str.split('?');
        Arr[1] = Arr[1] || '';

        var Params = Arr[1].split('&');
        for(var i = 0; i < Params.length; i++) {
            var Value = Params[i].split('=');
            Values[Value[0]] = Value[1] || null;
        }
        break;
    }
}

console.log(Values);
John V
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