How to add url parameter to the current url

Question

Currently I m at   http   example com topic php id 14    and I want to make a link to   http   example com topic php id 14 amp like like    by not defining the current url  Like  lt a href   amp like like  gt Like lt  a gt   However this last one shows me http   example com  amp like like

User · Answer

I know I m late to the game  but you can just do  id 14 amp like like by using http build query as follows   http build query array merge   GET  array  like   gt  like       Whatever GET parameters you had will still be there and if like was a parameter before it will be overwritten  otherwise it will be included at the end

User · Answer

function currentUrl          protocol   strpos strtolower   SERVER  SERVER PROTOCOL     https       FALSE    http     https        host         SERVER  HTTP HOST         script       SERVER  SCRIPT NAME         params       SERVER  QUERY STRING         return  protocol            host    script          params      Then add your value with something like   echo currentUrl     amp value myVal

User · Answer

It is not elegant but possible to do it as one-liner  lt a gt  element   x000D   x000D   lt a href onclick  event preventDefault    location    amp like like   gt Like lt  a gt  x000D   x000D   x000D

User · Answer

Maybe you can write a function as follows   var addParams   function key  val  url      var arr   url split         if arr length    1        return url         key         val        else if arr length    2        var params   arr 1  split   amp         var p           var a           var strarr             each params  function index  element          a   element split             p a 0     a 1                p key    val      for var o in p          strarr push o         p o              var str   strarr join   amp         return arr 0          str

User · Answer

If you wish to use  like  as a parameter your link needs to be    lt a href   topic php like like  gt Like lt  a gt    More likely though is that you want    lt a href   topic php id 14 amp like like  gt Like lt  a gt

User · Answer

There is no way to write a relative URI that preserves the existing query string while adding additional parameters to it   You have to   topic php id 14 amp like like

User · Answer

In case you want to add the URL parameter in JavaScript  see this answer  As suggested there  you can use the URLSeachParams API in modern browsers as follows    lt script gt  function addUrlParameter name  value      var searchParams   new URLSearchParams window location search    searchParams set name  value    window location search   searchParams toString      lt  script gt    lt body gt         lt a onclick  addUrlParameter  like    like    gt Like this page lt  a gt       lt  body gt

[html] How to add url parameter to the current url?

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